JP2007034599A - Design support method and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a designer to advance design while grasping manufacturing costs. <P>SOLUTION: In this method and device, while the design of a working product to be manufactured by operating physical working to solid materials is advanced by using a three-dimensional CAD tool, whenever the development of design content accompanied with the volume increase of solid materials in which material unit price information is stored and the additional operation of physical working in which working unit price information is stored is confirmed by a designer by clicking a confirmation icon 13, the manufacturing costs are calculated by a cost arithmetic tool, and displayed so as to be recognized by the designer. Thus, it is possible for the designer to recognize the manufacturing costs corresponding to each development stage of the design content in a real time so that the progress of design can be prevented from being hindered. As a result, it is possible for the designer to advance design while grasping the manufacturing costs. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides a method for supporting the design of a processed product manufactured by applying physical processing such as machining or sheet metal processing to a solid material such as a metal material or a plastic material, using a three-dimensional CAD (Computer Aided Design) tool, and In particular, the present invention relates to a technique for calculating the manufacturing cost of a processed product designed with the support of a three-dimensional CAD tool.

  In recent years, 3D CAD tools (3D CAD software, for example) when designing metal products (solid materials) such as metal processed parts manufactured by applying physical processing such as machining or sheet metal processing. In many cases, interactive computer-aided design supported by

  In the case of a processed product, the manufacturing cost is an extremely important factor, and the manufacturing cost is calculated by an estimation worker after the design is completed. The estimation work may be performed by a cost calculation display tool (cost calculation software) using a computer different from the three-dimensional CAD tool.

  Furthermore, the cost calculation display tool is configured to receive the design data directly from the three-dimensional CAD tool in order to speed up the estimate work of the processed product, so that the estimate operator can calculate the manufacturing cost without inputting the design data. An arithmetic display tool is also known (see, for example, Patent Documents 1 and 2).

JP-A-2000-222441 (page 7, column 11, column 47 to page 7, column 12, column 52, FIG. 10). JP-A-2001-265825 (page 6, column 10, section 33 to page 8, column 13, section 48, FIGS. 4 to 16).

However, in the case of designing a machining product that receives support from a conventional three-dimensional CAD tool, there is a problem that the designer cannot proceed with the design while grasping the manufacturing cost.
In the case of the conventional cost calculation display tool, since the manufacturing cost is calculated after the designer's drawing is completed, the designer cannot know the manufacturing cost if the design is not completed.

If the estimated manufacturing cost is higher than the planned cost, it may be necessary to change the design. If the calculated manufacturing cost greatly exceeds the planned cost, there will be a situation in which a complete redesign is required.
It may be necessary for the designer to calculate and check the manufacturing cost each time the design progresses while designing, but if it is done, the design efficiency will drop and the design can not be advanced in practice. .

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a design support method and a design support apparatus that allow a designer to proceed with design while grasping the manufacturing cost. .

In order to achieve the above object, the present invention has the following configuration.
In other words, the design support method according to the first aspect of the present invention is a design support method for supporting the design of a processed product manufactured by subjecting a solid material to physical processing using a three-dimensional CAD tool, (A) The material unit price information determined based on the volume of the solid material, the processing unit price information determined based on the type of physical processing and the processing mode are stored in advance, and (B) the three-dimensional CAD tool In accordance with the design data sent from the side, the material unit price information and the processing unit price information, the material cost and processing cost of the designed processed product, and the manufacturing cost of the processed product obtained by adding up each cost, A cost calculation display tool that displays these costs in a state that the designer can recognize is prepared, and (C) the designer uses the three-dimensional CAD tool. (D) Designer in addition to confirming that the design has progressed with at least one of increasing the volume of solid materials and adding physical processing during the process of design progress. Each time the progress of the design content is confirmed, the cost calculation display tool is made to calculate the manufacturing cost of the processed product.

  [Operation / Effect] In the case of designing a processed product manufactured by applying physical processing to a solid material using the method of the invention of claim 1, using a three-dimensional CAD tool, prior to starting the design, The material unit price information determined based on the volume of the solid material, the processing unit price information determined based on the type of physical processing and the mode of processing are stored in advance and sent from the three-dimensional CAD tool side. Cost calculation display that calculates the material cost and processing cost of the designed processed product according to the design data and pre-stored material unit price information or processing unit price information, calculates the manufacturing cost, and displays it in a state that the designer can recognize Prepare the tool.

  Then, in the process of the design being advanced by the designer using the 3D CAD tool, the volume of the solid material in which the material unit price information is stored and the physical processing in which the processing unit price information is stored are additionally implemented. When the designer confirms that the design contents have progressed with at least one of them, the cost calculation display tool calculates the manufacturing cost of the processed product. As a result, as design progresses, the designer confirms the progress of the design content with an increase in the volume of the solid material in which the material unit price information is stored and the addition of physical processing in which the processing unit price information is stored Each time, the manufacturing cost is calculated by the cost calculation display tool and displayed in a state that the designer can recognize.

  Therefore, in the case of the method of the invention of claim 1, the solid material in which the material unit price information is stored while the design of the processed product manufactured by subjecting the solid material to physical processing is advanced using the three-dimensional CAD tool. Each time the designer confirms the progress of the design content with additional execution of physical processing that stores volume increase and processing unit price information, the manufacturing cost is calculated by the cost calculation display tool and can be recognized by the designer Therefore, the designer can recognize the manufacturing cost corresponding to each progress stage of the design content in real time without causing any trouble in the progress of the design. Therefore, according to the design support method of the first aspect of the invention, the designer can proceed with the design while grasping the manufacturing cost.

  According to a second aspect of the present invention, in the design support method according to the first aspect, machining unit price information for physical machining is stored at a cost per unit machining time, and the cost calculation display tool is a physical machining tool. The processing time of the physical processing is calculated based on the processing volume of the solid material according to the above, and the processing cost is calculated by multiplying the calculated processing time by the cost per unit processing time.

  [Operation / Effect] In the case of the method of the invention of claim 2, the cost calculation display tool processes the solid material by physical processing that well reflects the processing cost of the physical processing and the processing time of the corresponding physical processing. While calculating based on the volume and multiplying the processing time of the physical processing by the cost per unit processing time, the processing cost caused by the physical processing can be accurately calculated.

  Further, the invention according to claim 3 is the design support method according to claim 1 or 2, wherein the cost calculation display tool is configured to add the processing cost caused by the physical processing when the manufacturing cost is calculated. The calculation is performed by calculating only the accompanying cost increase and integrating the cost increase every time the manufacturing cost is calculated.

  [Operation / Effect] In the case of the method of the invention of claim 3, when the manufacturing cost is calculated by the cost calculation display tool, the processing cost generated by the physical processing is calculated only for the cost increase accompanying the additional enforcement of the physical processing. Since the cost is calculated by accumulating the cost increase every time the manufacturing cost is calculated, the processing cost caused by the physical processing can be easily calculated.

  The invention according to claim 4 is the design support method according to any one of claims 1 to 3, wherein the cost calculation display tool calculates the processing cost by the physical processing in consideration of the processing accuracy of the physical processing. To do.

  [Operation / Effect] In the case of the method of the invention of claim 4, since the processing accuracy of the physical processing is taken into account when the processing cost generated in the physical processing is calculated by the cost calculation display tool, Cost can be calculated accurately.

  A design support apparatus according to the invention described in claim 5 is a design support apparatus that supports the design of a processed product manufactured by subjecting a solid material to physical processing using a three-dimensional CAD tool, and (a) a solid material Unit price information storage means for preliminarily storing material unit price information determined based on the volume of the material, type of physical processing, and processing unit price information determined based on the mode of processing, and (b) a three-dimensional CAD tool In accordance with the design data sent from the side, the material unit price information and the processing unit price information, the material cost and processing cost of the designed processed product, and the manufacturing cost of the processed product obtained by adding up each cost, are calculated. Cost calculation display means for displaying the cost of the product in a state that can be recognized by the designer, and (c) the design is advanced by the designer using the three-dimensional CAD tool. In the process, the designer confirms that the progress of the design content has been accompanied by at least one of the increase in the volume of the solid material in which the material unit price information is stored and the physical processing in which the processing unit price information is stored. And (d) the cost calculation display means calculates the manufacturing cost of the processed product each time the progress of the design content is confirmed by the designer.

  [Operation / Effect] In the case of designing a processed product using the apparatus of the invention of claim 5 by physically processing a solid material using a three-dimensional CAD tool, prior to starting the design, The unit price information determined based on the volume of the solid material, the processing unit price information determined based on the type of physical processing and the mode of processing are stored in advance in the unit price information storage means, and the three-dimensional CAD tool Calculate the manufacturing cost by calculating the material cost and processing cost of the processed product designed according to the design data sent from the side and the material unit price information or processing unit price information stored in advance, and display in a state that the designer can recognize Start up (activate) the cost calculation display means.

  The volume of the solid material in which the material unit price information is stored and the processing unit price information is stored in the process in which the designer starts drawing using the three-dimensional CAD tool and the design proceeds. When the designer confirms the progress of the design content accompanied by at least one of the additional execution of the processing by the design progress confirmation means, the cost calculation display means calculates and displays the manufacturing cost of the processed product. As a result, as design progresses, the designer confirms the progress of the design content with an increase in the volume of the solid material in which the material unit price information is stored and the addition of physical processing in which the processing unit price information is stored Each time, the manufacturing cost is calculated by the cost calculation display means and displayed in a state that the designer can recognize.

In other words, in the case of the apparatus of the invention of claim 5, by implementing the design support method of the invention of claim 1, the designer does not interfere with the progress of the design with the manufacturing cost corresponding to each progress stage of the design contents. It can be recognized in real time.
Therefore, according to the design support apparatus of the fifth aspect of the invention, the designer can proceed with the design while grasping the manufacturing cost.

  According to a sixth aspect of the present invention, in the design support apparatus according to the fifth aspect, the unit price information storage means stores the processing unit price information about physical processing at a cost per unit processing time, and the cost calculation display means includes The processing time of physical processing is calculated based on the processing volume of the solid material by physical processing, and the processing cost is calculated by multiplying the calculated processing time by the cost per unit processing time.

  [Operation / Effect] In the case of the apparatus of the invention of claim 6, the cost calculation display means processes the solid material by physical processing that well reflects the processing cost of the physical processing and the processing time of the corresponding physical processing. While calculating based on the volume and multiplying the processing time of the physical processing by the cost per unit processing time, the processing cost caused by the physical processing can be accurately calculated.

In the case of the design support method of the invention of claim 1, the solid material in which the material unit price information is stored while the design of the processed product manufactured by subjecting the solid material to physical processing is advanced using the three-dimensional CAD tool. Each time the designer confirms the progress of the design content with additional execution of physical processing that stores volume increase and processing unit price information, the manufacturing cost is calculated by the cost calculation display tool and can be recognized by the designer Therefore, the designer can recognize the manufacturing cost corresponding to each progress stage of the design content in real time without causing any trouble in the progress of the design.
Therefore, according to the design support method of the first aspect of the invention, the designer can proceed with the design while grasping the manufacturing cost.

In the case of the design support apparatus of the invention of claim 5, by carrying out the design support method of the invention of claim 1, the designer does not interfere with the progress of the design with the manufacturing cost corresponding to each progress stage of the design contents. It can be recognized in real time.
Therefore, according to the design support apparatus of the fifth aspect of the invention, the designer can proceed with the design while grasping the manufacturing cost.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a main configuration of a design support apparatus according to an example of an apparatus of the present invention that implements an example of the method of the present invention, and FIG. 2 shows a specific example of a processed product that is a design target in the embodiment. FIG. 3 is a flowchart showing a design process of a processed product by the apparatus of the embodiment.

  The apparatus of the embodiment shown in FIG. 1 is a design support apparatus that supports the design of a processed product manufactured by subjecting a solid material to physical processing such as machining or sheet metal processing by a three-dimensional CAD tool. Examples of the solid material that is the material of the processed product include an iron round bar, a brass square, and an aluminum plate. Specific examples of the physical processing include machining and sheet metal processing. Examples of the processed product to be designed by the design support apparatus of the embodiment include processed parts as parts of various industrial equipment.

  As shown in FIG. 1, the design support apparatus of the embodiment includes a tool program memory 1 for storing a computer program (software) of a three-dimensional CAD tool, and a cost calculation display for estimating a cost of a processed product. In addition to the tool program memory 2 for storing the computer program (software) of the tool (cost calculation display means), the material unit price information determined based on the volume of the solid material is displayed in a table format. And a processing unit price information memory 4 for storing processing unit price information determined based on the type of physical processing and the processing mode in advance in a table format.

  In addition, the design support apparatus of the embodiment displays various data such as an operation menu necessary for the operation of the apparatus, a design model created using a three-dimensional CAD tool, and a manufacturing cost calculated by a cost calculation display tool. Display monitor 5, operation unit 6 for inputting commands and data necessary for the operation of the apparatus, various data necessary for design of machining products and calculation of manufacturing costs, design data (design results), A RAM (read / write storage unit) 7 that holds (stores) estimation data (estimation results) and the like is provided.

  In the case of the apparatus according to the embodiment, a CPU (computer) that executes computations, processes data, or distributes instruction signals in a timely manner in accordance with commands and data input by the operation unit 6 while following the operation program, or the operation status of the apparatus Processor 10), and the CPU 10 and device component elements such as tool program memory 1 to RAM 7 are connected to each other via a bus (bus) BUS with input / output ports 8 and 9 interposed therebetween as necessary. In other words, each device component functions while maintaining cooperation so that the device operates normally.

  Next, the design support apparatus of the embodiment will be described in detail while following the process of designing a specific processed product. That is, in the following, it is assumed that the machining product MD shown in FIG. 2 is designed according to the design process shown in FIG. 3 with the support of the three-dimensional CAD tool.

[Step S1]... Storage of Material Unit Price Information First, in the apparatus of the embodiment, the material unit price is separately calculated for each material in advance and stored in the material unit price information memory 3 in advance in a table format as material unit price information. FIG. 4 is a schematic diagram showing material unit price information stored in the material unit price information memory 3. The material unit price is determined by the amount per unit weight (unit volume) of 1 kg for each material.
In the case of the schematic diagram of FIG. 4, SPCC-A indicates a steel plate, SDG indicates a steel round bar, AL indicates an aluminum plate, and SUS304 indicates a stainless plate. Moreover, the material unit price may be defined not per unit weight but per unit volume.

[Step S2] ... Storage of processing unit price information In the case of the embodiment, the types of physical processing include machining and sheet metal processing. The processing unit price is separately calculated for each type and mode of processing in advance, and stored in the processing unit price information memory 4 in advance in a table format as processing unit price information. FIG. 5 is a schematic diagram showing processing unit price information for machining stored in the processing unit price information memory 4. The processing unit price is determined by an amount per unit time of 1 second for each type and mode of processing. The processing unit price information for sheet metal processing is the same as that for machining.

[Step S3] ... Start up of CAD tool and cost calculation tool The designer operates the operation unit 6 to start up the three-dimensional CAD tool and cost calculation display tool stored in the memory 1 and 2 for the tool program. increase. The screen of the display monitor 5 initially displays a design screen P for a three-dimensional CAD tool as shown in FIG. When the cost screen switching icon 11 in the design screen P is clicked, the cost screen Q shown in FIG. 7 is superimposed on the design screen P as shown in FIG. 7, and the cost screen end icon 12 is displayed. When is clicked, the screen of the display monitor 5 becomes only the design screen P.

[Step S4]... Designation of material type and physical processing type When the designer clicks, the material type designation window screen W1 is opened on the design screen P as shown in FIG. After the selection and designation, the cost screen Q is superimposed and displayed. Then, by clicking, as shown in FIG. 9, the cost screen Q is opened after the physical processing type designation window screen W2 is opened and the physical processing type is selected and designated, and then the cost screen Q is terminated. Then, the screen of the display monitor 5 is returned to the design screen P again. Here, it is assumed that SDG is selected as the solid material and machining is selected and specified as the type of physical processing.

[Step S5] ... Design progress (1)
As shown in FIG. 10, the designer draws the thin cylindrical MD1 on the screen using a three-dimensional CAD tool. Subsequently, an icon for design progress confirmation (hereinafter abbreviated as “confirmation icon” as appropriate) 13 in the design screen P is clicked. This confirmation icon 13 is used to increase the volume of the solid material in which the material unit price information is stored and the physical processing in which the unit price information is stored in the process of the design being advanced by the designer using the three-dimensional CAD tool. It is arranged as a design progress confirmation means for the designer to confirm that the design contents have progressed with at least one of the additional enforcement.

[Step S6] ... Calculation of Manufacturing Cost (1)
When the confirmation icon 13 is clicked, the current design data is sent from the three-dimensional CAD tool to the cost calculation display tool, and the cost calculation display tool is displayed in addition to the cost screen Q being superimposed. The designer calculates the manufacturing cost by calculating the material cost and processing cost of the processed product designed according to the design data sent from the 3D CAD tool side and the material unit price information or processing unit price information stored in advance. Is displayed in a state where can be recognized. That is, every time the designer clicks the confirmation icon 13, the manufacturing cost is calculated by the cost calculation display tool and displayed in a state that the designer can recognize.
The cost calculation display tool calculates and adds the material cost and the processing cost. In the case of the cost calculation display tool of the embodiment, the material cost and the processing cost are also displayed, and the breakdown of the manufacturing cost can be understood.

  Here, the unit price of the SDG is read out from the material unit price information memory 3, and the calculation according to the formula of (diameter of the thin cylinder MD1) × (height of the thin cylinder MD1) × (specific gravity of SDG) × (unit price of SDG) is performed. The material cost of the thin cylinder MD1 is calculated and displayed on the lower right of the cost screen Q as shown in FIG. In the case of the thin cylinder MD1, since it has the same diameter as the solid material SDG, the machining is not performed and the processing cost becomes zero. As a result, as shown in FIG. 11, the manufacturing cost is only the material cost of the thin cylinder MD1. .

[Step S7] ... Design progress (2)
After returning to the design screen P alone, the designer clicks the confirmation icon 13 after drawing the small cylinder MD2 on the thin cylinder MD1 on the screen as shown in FIG.

[Step S8] ... Calculation of manufacturing cost (2)
By clicking the confirmation icon 13, design data at the stage of design progress / stage is sent to the cost calculation display tool, and in addition to the cost screen Q being superimposed, the cost calculation display tool calculates the manufacturing cost. ·indicate.
Here, the unit price of the SDG is read out from the material unit price information memory 3, and (diameter of the thin cylinder MD1) × (total height of the thin cylinder MD1 and small cylinder MD2) × (specific gravity of the SDG) × (unit price of the SDG) The calculation according to the following mathematical formula is executed, the material cost required for manufacturing the processed product shown in FIG. 13 is calculated, and updated and displayed on the cost screen Q.

  On the other hand, in order to make the small cylinder MD2 appear, lathe machining of SDG is necessary. As shown in FIG. 13, a lathe machining is performed by opening a window screen W3 for specifying a machining mode on the cost screen Q as shown in FIG. Is specified. Then, the cost calculation display tool calculates the cutting amount (processing volume) of the SDG from the difference in diameter between the thin cylinder MD1 and the small cylinder MD2 and the height of the small cylinder MD2, and also calculates the calculated cutting amount of the SDG. Are converted into machining time in accordance with the correspondence between the amount of lathe machining and the machining time obtained in advance. Correspondence between turning amount and machining time of lathe machining is incorporated in the tool in the form of table or mathematical expression.

  Next, the unit price of lathe processing is read out from the processing unit price information memory 4, and the calculation of the mathematical formula of (processing time of lathe processing) × (unit price of lathe processing) is executed, which is necessary for the production of the machining product shown in FIG. As shown in FIG. 13, an update processing cost is calculated and displayed as updated, and the non-updated material cost and the updated processing cost are added together, and the manufacturing cost update display is performed on the cost screen Q.

[Step S9] ... design progress (3)
After the designer returns only to the design screen, as shown in FIG. 14, after the thin column MD1 and the small column MD2 are additionally drawn on the screen and formed into a cylinder, the confirmation icon 13 is clicked.

[Step S10] ... Calculation of manufacturing cost (3)
By clicking the confirmation icon 13, design data at the stage of design progress / stage is sent to the cost calculation display tool, and in addition to the cost screen Q being superimposed, the cost calculation display tool calculates the manufacturing cost. ·indicate. Since there is no increase in SDG, which is a solid material, the material cost remains unchanged.

  On the other hand, in order to make the thin cylinder MD1 and the small cylinder MD2 into a cylinder, it is necessary to extract the SDG by milling, and as shown in FIG. 15, a window screen W3 for specifying a machining mode is opened on the cost screen and the milling is performed. Specify processing. Then, the cost calculation display tool calculates the cutting amount (processing volume) of the SDG from the inner diameter of the thin cylinder MD1 and the small cylinder MD2 and the total height of the thin cylinder MD1 and the small cylinder MD2, and also calculates the calculated cutting amount of the SDG. The machining time is converted into the machining time according to the correspondence between the cutting amount of the milling process and the machining time, which are determined in advance including the time and effort of setup. The correspondence between the milling amount and the machining time is also incorporated in the tool in the form of a table or formula.

  Next, the unit price for milling is read from the processing unit price information memory 4, and the calculation of the mathematical formula of (milling processing time) × (unit price for lathe processing) is executed, which is necessary for the production of the machining product shown in FIG. As shown in FIG. 15, an update processing cost is calculated and displayed, and the non-updated material cost and the updated processing cost are added together to update the manufacturing cost.

In the case of lathe processing and milling, the cost calculation display tool calculates based on the processing volume of solid material by physical processing that well reflects the processing cost of physical processing and the corresponding processing time of physical processing. Since the machining time of physical machining is multiplied by the cost per unit machining time, the machining cost caused by physical machining can be calculated accurately.
[Step S11] ... design progress (4)
After returning to the design screen only, the designer additionally draws three through-holes (elementary holes) MD3 of the same diameter on the thin cylinder MD1 at intervals of 120 ° on the screen as shown in FIG. Next, the confirmation icon 13 is clicked.

[Step S12] ... Calculation of manufacturing cost (4)
By clicking the confirmation icon 13, design data at the stage of design progress / stage is sent to the cost calculation display tool, and in addition to the cost screen Q being superimposed, the cost calculation display tool calculates the manufacturing cost. ·indicate. Since there is no increase in SDG, which is a solid material, the material cost remains unchanged.

  On the other hand, in order to open the through hole MD3, it is necessary to process a hole, and by clicking, a window screen W3 for specifying a processing mode is opened on the cost screen Q to specify the hole processing as shown in FIG. . As shown in FIG. 18, the cost calculation display tool incorporates a table showing the correspondence between the diameter and depth of the raw hole obtained in advance including the time and effort of the setup and the machining time. The corresponding relationship between the diameter and depth of the raw hole shown and the machining time is complementarily applied according to the diameter and depth of the through hole MD3, and the total raw hole machining time of the three through holes MD3 is calculated.

  Next, the unit price of the hole machining is read from the machining unit price information memory 4, and the calculation of the mathematical formula of (element hole machining time) × (unit price of the hole machining) is executed to produce the machining product shown in FIG. As shown in FIG. 17, the necessary machining cost is calculated, and in addition to being updated and displayed, the non-updated material cost and the updated machining cost are added together and the manufacturing cost is updated and displayed.

[Step S13] ... Design progress (5)
After the designer returns only to the design screen, as shown in FIG. 19, subsequent to the additional drawing of one horizontal hole (raw hole) MD4 on the side peripheral surface of the thin cylinder MD1 on the screen. Click the confirmation icon 13.

[Step S14] ... Calculation of Manufacturing Cost (5)
By clicking the confirmation icon 13, design data at the stage of design progress / stage is sent to the cost calculation display tool, and in addition to the cost screen Q being superimposed, the cost calculation display tool calculates the manufacturing cost. ·indicate. Since there is no increase in SDG, which is a solid material, the material cost remains unchanged.

  On the other hand, in the case of the horizontal hole MD4, the machining cost required for the production of the machining product shown in FIG. 19 is calculated in exactly the same manner except that the diameter and the depth are different from those of the through hole MD3. As shown in FIG. In addition to the display, the non-updated material cost and the updated processing cost are added together to update the manufacturing cost.

[Step S15] ... Completion of Design Now that the processed product shown in FIG. 2 has been designed, the design using the apparatus of the embodiment is completed.

In the case of the apparatus of the embodiment, even in the case of screw hole machining, a hole-cutting table is incorporated except that a table showing the correspondence between the screw hole diameter, depth and machining time is incorporated. The machining cost is calculated in the same manner as above. In the case of bare hole processing and screw hole processing, the processing time is determined based on the processing volume of the solid material such as the diameter and depth of the hole, so that the processing cost can be accurately calculated.
Further, when the physical processing is sheet metal processing, bending processing, cutting processing, punching processing, and the like are set as processing modes.

  Further, in the embodiment, unless the processing accuracy is specified, the standard accuracy (0.05 mm) is specified. When the machining accuracy is set to a non-standard accuracy, a click operation opens a window screen W4 for designating the machining accuracy on the design screen P and designates a desired machining accuracy, as shown in FIG. Since machining accuracy affects machining time, in the case of a working example, when a non-standard machining accuracy is specified, a factor (magnification) corresponding to the machining accuracy is multiplied by the machining time, and an accuracy appropriate for the machining accuracy is obtained. The production cost is calculated.

  In the case of the embodiment, a model tree display icon is provided on the cost screen, and when this icon is clicked, a system tree diagram (individually designed parts of the processed product is shown) that allows the design order of the processed products to be designed easily. When a partial display is clicked on the tree, the material cost, processing cost, and manufacturing cost of the processed product designed up to the click stage are displayed on the cost screen. It can also be set as a structure. In this way, the designer can easily check the manufacturing cost along the design flow after the design.

  As described in detail above, according to the method or apparatus of the embodiment, while the design of the processed product to be manufactured by physically processing the solid material is advanced using the three-dimensional CAD tool, the material unit price information is obtained. Every time the designer clicks the confirmation icon 13 to confirm the progress of the design content accompanying the increase in the volume of the stored solid material and the additional execution of the physical processing storing the processing unit price information, the cost calculation display tool Since the manufacturing cost is calculated and displayed in a state that can be recognized by the designer, the designer can recognize the manufacturing cost corresponding to each progress stage of the design contents in real time without causing any trouble in the progress of the design.

Therefore, according to the design support method or the design support apparatus of the embodiment, the designer can proceed with the design while grasping the manufacturing cost.
In addition, in the case of the embodiment, when the manufacturing cost is calculated by the cost calculation display tool, the processing cost caused by the physical processing is calculated only by the cost increase due to the additional enforcement of the physical processing. Since the calculation is performed by accumulating the cost increase every time, the processing cost caused by the physical processing can be easily calculated.

The present invention is not limited to the above embodiment, and can be modified as follows.
(1) In the case of the embodiment, the material type and processing accuracy are specified on the three-dimensional CAD tool side, but the material type and processing accuracy are also specified on the cost calculation display tool side. It may be.

  (2) In the case of the examples, the type of physical processing was both mechanical processing and sheet metal processing, but the type of physical processing may be only one other than mechanical processing and sheet metal processing, Processing other than machining and sheet metal processing may be used.

  (3) In the case of the apparatus of the embodiment, the manufacturing cost is displayed as a video on the screen of the display monitor. However, the manufacturing cost may be displayed by voice.

It is a block diagram which shows the principal part structure of the design support apparatus of an Example. It is a perspective view which shows the specific example of the processed product which is the design object in an Example. It is a flowchart which shows the design process of the processed product by the apparatus of an Example. It is a schematic diagram which shows the material unit price information memorize | stored in the material unit price information memory. It is a schematic diagram which shows the processing unit price information memorize | stored in the processing unit price information memory. It is a schematic diagram which shows the initial state of the screen for a design of a three-dimensional type CAD tool. It is a schematic diagram which shows the initial state of the screen for costs of a cost calculation display tool. It is a schematic diagram which shows the designation | designated condition of the material kind in the screen for a design of a three-dimensional type CAD tool. It is a schematic diagram which shows the designation | designated condition of the process type in the screen for costs of a cost calculation display tool. It is a schematic diagram which shows an example of the screen for a design of the three-dimensional type CAD tool in the middle of design. It is a schematic diagram which shows the example of a display of the manufacturing cost on the screen for costs of the cost calculation display tool in the middle of design. It is a schematic diagram which shows the other example of the screen for a design of the three-dimensional type CAD tool in the middle of design. It is a schematic diagram which shows the other example of a manufacturing cost on the screen for costs of the cost calculation display tool in the middle of design. It is a schematic diagram which shows the other example of the screen for a design of the three-dimensional type CAD tool in the middle of design. It is a schematic diagram which shows the other example of a manufacturing cost on the screen for costs of the cost calculation display tool in the middle of design. It is a schematic diagram which shows the other example of the screen for a design of the three-dimensional type CAD tool in the middle of design. It is a schematic diagram which shows the other example of a manufacturing cost on the screen for costs of the cost calculation display tool in the middle of design. It is a schematic diagram of the table format which shows the correspondence of the diameter and depth of a hole in an Example, and processing time. It is a schematic diagram which shows an example of the screen for a design of the three-dimensional type CAD tool at the time of design completion. It is a schematic diagram which shows the example of a display of the manufacturing cost on the screen for costs of the cost calculation display tool at the time of design completion. It is a schematic diagram which shows the designation | designated condition of the process precision in the screen for a design of a three-dimensional type CAD tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... (For program storage of 3D-type CAD tool) Tool program memory 2 ... (For cost calculation display tool program storage) Tool program memory 3 ... Material unit price information memory (unit price information storage means)
4. Processing unit price information memory (unit price information storage means)
5 ... Display monitor 13 ... Confirmation unconformer (design progress confirmation means)
MD ... processed product

Claims (6)

  A design support method for supporting the design of a processed product manufactured by applying physical processing to a solid material by using a three-dimensional CAD tool. (A) Material unit price information determined based on the volume of the solid material and physical The processing unit price information determined based on the type of processing and the mode of processing is stored in advance, and (B) design data sent from the three-dimensional CAD tool side, the material unit price information, and the processing Cost calculation display that calculates the material cost and processing cost of the designed processed product according to the unit price information, and the manufacturing cost of the processed product that is the sum of each cost, and displays these costs in a state that the designer can recognize Prepare tools and (C) increase volume of solid materials in the process of being designed by designers using 3D CAD tools In addition to the fact that the designer confirms that the design content has progressed with at least one of the additional enforcement of physical processing and (D) every time the progress of the design content by the designer is confirmed, a cost calculation is performed. A design support method characterized by causing a display tool to calculate the manufacturing cost of a processed product.   The design support method according to claim 1, wherein unit cost information on physical processing is stored at a cost per unit processing time, and the cost calculation display tool is based on a processing volume of solid material by physical processing. A design support method that calculates the processing cost by calculating the processing time of physical processing and multiplying the calculated processing time by the cost per unit processing time.   In the design support method according to claim 1, the cost calculation display tool calculates a processing cost caused by physical processing by calculating only a cost increase accompanying additional execution of physical processing when calculating the manufacturing cost. A design support method that calculates by adding up the cost increase every time the manufacturing cost is calculated.   4. The design support method according to claim 1, wherein the cost calculation display tool calculates the processing cost by physical processing in consideration of processing accuracy of physical processing.   A design support apparatus that supports the design of a processed product manufactured by applying physical processing to a solid material using a three-dimensional CAD tool, and (a) material unit price information and physical determined based on the volume of the solid material Unit price information storage means for storing in advance processing unit price information determined based on the type of processing and the mode of processing, (b) design data sent from the three-dimensional CAD tool side, the material unit price information, Cost calculation that calculates the material cost and processing cost of the designed processed product according to the processing unit price information, and the manufacturing cost of the processed product obtained by adding up the costs, and displays these costs in a state that the designer can recognize. Display means, and (c) a solid in which material unit price information is stored in the process of design being advanced by a designer using a three-dimensional CAD tool And (d) a design progress confirmation means for a designer to confirm that the design content has progressed with at least one of an increase in the volume of the charge and an additional execution of physical processing in which processing unit price information is stored. A design support apparatus characterized in that a manufacturing cost of a processed product is calculated by a cost calculation display means each time the progress of design contents by a person is confirmed. 6. The design support apparatus according to claim 5, wherein the unit price information storage means stores the processing unit price information about the physical processing at a cost per unit processing time, and the cost calculation display means processes the solid material by physical processing. A design support device that calculates the processing cost by calculating the processing time of physical processing based on the volume and multiplying the calculated processing time by the cost per unit processing time.

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