JP2018206020A - Estimate calculation device, estimate calculation method, and program - Google Patents

Abstract

To provide an estimate calculation device, an estimate calculation method, and a program capable of calculating an estimate for cost other than component costs.SOLUTION: An estimate calculation device comprises a component information acquisition unit that acquires component information of each of components constituting an estimate object; a component cost estimating unit that calculates an estimate of a component cost for each component on the basis of the component information; an assembly cost estimating unit that calculates an estimate of an assembly cost for assembling the estimate object from components on the basis of the component information; and a total cost estimating unit that calculates an estimate of a total cost by summing the component cost and the assembly cost.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an estimate calculation device, an estimate calculation method, and a program.

As one of techniques for estimating the cost of parts when designing and manufacturing a product or the like, a technique for performing estimation using CAD data has been proposed.
For example, Patent Document 1 describes a method for estimating a part using three-dimensional CAD model data. In this method, a parameter necessary for estimating a part is acquired from the three-dimensional CAD model data, a part processing step is set based on the acquired parameter, and a processing man-hour for each processing step is calculated. The apparatus multiplies the estimated processing man-hour by the processing rate, and calculates the cost of the part by adding the material cost.

JP 2001-101284 A

  If a device or system that calculates an estimate when designing or manufacturing a product or the like can calculate an estimate for a cost other than the component cost, more useful information can be provided to the user.

  The present invention provides an estimate calculation apparatus, an estimate calculation method, and a program that can calculate an estimate for costs other than component costs.

  According to the first aspect of the present invention, the estimate calculation device estimates a component cost for each component based on the component information acquisition unit that acquires component information of each component that constitutes the estimation target. Calculate the part cost estimation part to be calculated, the assembly cost estimation part to calculate the estimation of the assembly cost for assembling the estimation target from the part based on the part information, and the total cost estimate by summing the part cost and the assembly cost A total cost estimation unit.

  You may make it provide the designation | designated acquisition part which acquires designation | designated of the unit of estimation object among the products comprised combining several units.

  The assembly cost estimating unit calculates an assembly cost for assembling the product from the units constituting the product, and the total cost estimating unit is calculated from a total cost for each unit constituting the product and a unit constituting the product. You may make it calculate the total cost of the said product which totaled the assembly cost which assembles the said product.

  The component information may be generated based on a user operation in the three-dimensional CAD system.

  Comparing the shape of the part with the shape of the material of the part, a machining process estimation unit that estimates a machining process from the material to the part is provided, and the component cost estimation unit is estimated by the machining process estimation unit An estimate of the part cost may be calculated based on the processed process.

  The assembly cost estimation unit counts the number of machining shapes for assembly provided in the parts for all parts to be estimated, and the number of machining shapes for assembly and the cost per unit man-hour The assembly cost estimate for the assembly processing shape may be calculated.

  The assembly cost estimation unit uses a coefficient determined in advance to change the number of man-hours for the same work when the assembly worker does not need to move during assembly and when the assembly worker needs to move. An estimate of the assembly cost may be calculated.

  A marginal cost may be determined in advance for each part, and the assembly cost estimation unit may calculate the estimation of the assembly cost including a total of the marginal costs.

  According to the second aspect of the present invention, the estimation calculation method acquires part information of each of the parts constituting the estimation target, calculates an estimation of the part cost for each part based on the part information, Calculating an estimate of an assembly cost for assembling an estimation target based on the component information, and calculating an estimate of a total cost that is a sum of the component cost and the assembly cost.

  According to the third aspect of the present invention, the program causes the computer to acquire part information of each part constituting the estimation target, and to calculate an estimate of the part cost for each part based on the part information. Is a program for calculating an estimate of an assembly cost for assembling an estimation target based on the component information, and calculating an estimate of a total cost that is the sum of the component cost and the assembly cost.

  According to the present invention, an estimate can be calculated for costs other than component costs.

It is a schematic block diagram which shows the function structure of the design support system which concerns on embodiment of this invention. It is a schematic block diagram which shows the function structure of the three-dimensional CAD apparatus which concerns on the same embodiment. It is a schematic block diagram which shows the function structure of the PDM system which concerns on the same embodiment. It is a schematic block diagram which shows the function structure of the estimation calculation apparatus which concerns on the same embodiment. It is a flowchart which shows the example of the procedure of the process in which the estimation calculation apparatus which concerns on the embodiment calculates the cost of a product. 5 is a flowchart illustrating an example of a processing procedure in which the estimate calculation apparatus according to the embodiment calculates an estimate of the cost of each component that constitutes an estimation target. It is a flowchart which shows the example of the process sequence which the estimate calculation apparatus which concerns on the embodiment calculates the estimate of the cost of each unit.

Hereinafter, although embodiment of this invention is described, the following embodiment does not limit the invention concerning a claim. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.
FIG. 1 is a schematic block diagram showing a functional configuration of a design support system according to an embodiment of the present invention. As shown in FIG. 1, the design support system 1 includes a three-dimensional CAD (Computer Aided Design) system 2 and an estimate calculation device 300. The three-dimensional CAD system 2 includes a three-dimensional CAD device 100 and a PDM (Product Data Management) system 200.

The design support system 1 is a system that supports the design of a product or a part thereof. In particular, the design support system 1 functions as a CAD and converts the shape of the parts constituting the product into data. In addition, the design support system 1 calculates an estimate of the cost of each part. Furthermore, the design support system 1 calculates an estimate of the cost of the unit that combines the parts and an estimate of the cost of the product that combines the units. The unit here is a part of the product and is configured by combining parts. A product is configured by combining units.
The design support system 1 calculates a material cost of a part, a processing cost for the part, an assembly cost for assembling a unit from the part, and an estimate of an assembly cost for assembling a product from the unit.

  The three-dimensional CAD system 2 generates shape data of parts constituting the product and incidental data such as materials of these parts in accordance with a user operation. The incidental data here is data other than shape data among data relating to parts. Examples of incidental data generated by the three-dimensional CAD system 2 include part type information, processing type information, fastening product information, painting processing information, adjustment work information, correction work element information, and special work information. Not limited to. The three-dimensional CAD system 2 may generate only a part of these data (information), or may generate data other than these.

The part type information is information indicating the type of processing for molding a part, such as a sheet metal part, a cutting part, a lathe part, or a resin molded product.
The processing type information is information indicating the type of processing performed on the part. For example, when the processing is drilling, the processing type information indicates the type of hole to be drilled, such as a screw hole or a round hole. When the processing is bending, the processing type information indicates a bending angle and bending R.
The fastening product information indicates one or both of the type and number of fastening products when assembling a unit from components and the type and number of fastening products when assembling a product from units. Examples of fasteners include, but are not limited to, screws, washers, E-rings, and insulation locks.

The painting processing information indicates information related to the painting of parts, such as the presence / absence of painting processing and the painting method.
The adjustment work information indicates information related to quantitative adjustment such as adjustment of a gap between components.
The correction work element information indicates work necessary for constructing a part or unit, such as installation of a spring pin, installation of a tension spring, application of molycoat lubricant, and insertion of a connector.
The special work information indicates work that is relatively infrequently performed, such as soldering and reaming.
Hereinafter, the shape data of the component and the incidental data are combined and referred to as component information. In this way, the component information is generated based on a user operation on the three-dimensional CAD system 2.

The three-dimensional CAD device 100 executes a CAD function in the design support system 1. In particular, the three-dimensional CAD device 100 generates part shape data in accordance with a user operation. Further, the three-dimensional CAD apparatus 100 receives a user operation for inputting incidental information. Further, the three-dimensional CAD device 100 also functions as a terminal device of the design support system 1.
The three-dimensional CAD device 100 is configured using a computer such as a personal computer (PC) or a work station (WS).
FIG. 2 is a schematic block diagram showing a functional configuration of the three-dimensional CAD apparatus 100. As illustrated in FIG. 2, the three-dimensional CAD apparatus 100 includes a first communication unit 110, a display unit 120, an operation input unit 130, a first storage unit 180, and a first control unit 190.

The first communication unit 110 communicates with other devices. In particular, the first communication unit 110 transmits incidental information to the PDM system 200. In addition, the first communication unit 110 transmits the shape data of the component to the estimation calculation device 300. The shape data transmitted by the first communication unit 110 is used as data for the estimation calculation device 300 to perform estimation.
The display unit 120 has a display screen such as a liquid crystal panel or an LED (Light Emitting Diode) panel, and displays various images. In particular, the combination of the display unit 120 and the operation input unit 130 functions as a CAD user interface, and the display unit 120 displays an image of a part under design.

The operation input unit 130 includes input devices such as a keyboard and a mouse, for example, and receives user operations. In particular, the combination of the operation input unit 130 and the display unit 120 functions as a CAD user interface, and the operation input unit 130 receives various operations in CAD, such as a drawing operation and an input operation of incidental information.
The 1st memory | storage part 180 is comprised using the memory | storage device with which the three-dimensional CAD apparatus 100 is provided, and memorize | stores various information. In particular, the first storage unit 180 stores shape data generated by the three-dimensional CAD device 100.

The first control unit 190 controls each unit of the three-dimensional CAD device 100 and executes various processes. In particular, the first control unit 190 executes CAD functions to generate part shape data. Further, the first control unit 190 generates incidental information based on an input operation for incidental information performed when the CAD function is executed, and transmits the incidental information to the PDM system 200 via the first communication unit 110.
The first control unit 190 is configured by a CPU (Central Processing Unit) included in the three-dimensional CAD device 100 reading out and executing a program from the first storage unit 180.

The PDM system 200 manages data related to products. In particular, the PDM system 200 stores and manages incidental information generated and transmitted by the three-dimensional CAD device 100. The PDM system 200 is configured using a computer such as a personal computer or a workstation.
In the following, a case where the three-dimensional CAD apparatus 100 stores shape data and the PDM system 200 stores incidental data will be described as an example, but the sharing of data stored in the three-dimensional CAD apparatus 100 and the PDM system 200 will be described here. Not exclusively. For example, the PDM system 200 may store shape data and incidental data. Further, the three-dimensional CAD device 100 and the PDM system 200 may be integrally configured using the same computer.

FIG. 3 is a schematic block diagram showing a functional configuration of the PDM system 200. As illustrated in FIG. 3, the PDM system 200 includes a second communication unit 210, a second storage unit 280, and a second control unit 290.
The second communication unit 210 communicates with other devices. In particular, the second communication unit 210 receives incidental information from the three-dimensional CAD device 100. In addition, the second communication unit 210 transmits incidental information to the estimation calculation device 300. The incidental information transmitted by the second communication unit 210 is used as data for the estimation calculating apparatus 300 to perform estimation.

The second storage unit 280 is configured using a storage device provided in the PDM system 200 and stores various types of information. In particular, the second storage unit 280 stores incidental information received by the second communication unit 210.
The second control unit 290 controls each unit of the PDM system 200 and executes various processes. In particular, the second control unit 290 manages incidental information. The second control unit 290 is configured by a CPU provided in the PDM system 200 reading out a program from the second storage unit 280 and executing it.

The estimation calculation device 300 executes an estimation function in the design support system 1. The estimate calculation apparatus 300 is configured using a computer such as a personal computer or a workstation.
FIG. 4 is a schematic block diagram illustrating a functional configuration of the estimation calculation apparatus 300. As illustrated in FIG. 4, the estimation calculation apparatus 300 includes a third communication unit 310, a third storage unit 380, and a third control unit 390. The third control unit 390 includes a component information acquisition unit 391, a component cost estimation unit 392, an assembly cost estimation unit 393, a total cost estimation unit 394, a designation acquisition unit 395, and a machining process estimation unit 396.

The third communication unit 310 communicates with other devices. In particular, the third communication unit 310 receives shape data from the three-dimensional CAD device 100. Further, the third communication unit 310 receives incidental data from the PDM system 200.
The 3rd memory | storage part 380 is comprised using the memory | storage device with which the estimation calculation apparatus 300 is provided, and memorize | stores various information.
The third control unit 390 controls each unit of the PDM system 200 and executes various processes. In particular, the third control unit 390 calculates an estimate of the cost of part or all of the product that is the design target. The third control unit 390 is configured by a CPU included in the estimation calculation device 300 reading out a program from the third storage unit 380 and executing it.

  The part information acquisition unit 391 acquires part information of each part constituting the estimation target. Specifically, the component information acquisition unit 391 extracts shape data and incidental data from the reception data of the third communication unit 310. The estimation target here may be a product that is a CAD target in the design support system 1 or may be a part (for example, a unit) of this product. The estimation target is specified by the user, for example.

  When the estimation target is a unit, the designation acquisition unit 395 acquires the designation of the unit to be estimated among products configured by combining a plurality of units. Specifically, when the three-dimensional CAD device 100 receives a user operation for designating a unit to be estimated and transmits information indicating the designated unit to the estimate calculation device 300, the designation acquisition unit 395 includes the third communication unit. Information indicating the designated unit is extracted from the received data 310.

The machining process estimation unit 396 estimates a machining process from a material to a part by comparing the shape of the part with the shape of the material of the part. The material of a part here is a thing in which the thing processed into parts, such as a board | plate material or a bar, is in the state before a process.
For example, when a part is generated by machining a member that is a bar material, the machining process estimation unit 396 compares the diameter of the material with the diameter of the part. If the diameter of the part is smaller than the diameter of the material, the machining process estimation unit 396 determines that the material has been cut and calculates the amount of cutting in the radial direction. Then, the machining step estimation unit 396 converts the calculated cutting amount into the number of cutting steps (the number of times the cutting operation is repeated to obtain a desired cutting amount). For example, the third storage unit 380 stores in advance a table indicating a correspondence relationship between the amount of cutting and the number of cutting steps, and the machining process estimation unit 396 refers to this table to convert the amount of cutting into the number of cutting steps. I do. The obtained number of stages corresponds to an example of the estimation result of the machining process.

The component cost estimation unit 392 calculates a component cost estimate for each component constituting the estimation target, based on the component information acquired by the component information acquisition unit 391.
Specifically, the component cost estimation unit 392 identifies the material of the component based on the incidental information, and reads the material cost stored in advance by the third storage unit 380 for the identified material.
Further, when the machining process estimation unit 396 estimates a machining process from a material to a part, the parts cost estimation unit 392 acquires a machining cost based on the estimated machining process. For example, the third storage unit 380 stores in advance a table indicating a correspondence relationship between the machining process and the machining cost. The component cost estimation unit 392 reads the machining cost corresponding to the machining process with reference to this table.
The part cost estimation unit 392 calculates the part cost estimate by adding the material cost and the processing cost.

The assembly cost estimation unit 393 calculates an estimation of the assembly cost for assembling the estimation target from the parts based on the part information. Further, the assembly cost estimation unit 393 calculates an assembly cost for assembling the unit from the product based on the part information.
The assembly cost estimation unit 393 may calculate an estimation of the assembly cost based on the number of processing shapes for assembly. Specifically, the assembly cost estimation unit 393 counts the number of machining shapes for assembly provided in the parts for all the parts to be estimated. Then, the assembly cost estimation unit 393 calculates an assembly cost estimate for the assembly processing shape by multiplying the number of assembly processing shapes by the man-hour per location and the cost per unit man-hour.

  For example, the assembly cost estimation unit 393 counts the number of screw holes provided in the parts for all the parts to be estimated. The number of screw holes is considered to indicate the number of times of screwing. Then, the assembly cost estimation unit 393 multiplies the number of screw holes by the number of screwing steps per location to calculate the number of screwing steps for the entire estimation target. Further, the assembly cost estimation unit 393 calculates an estimation of the assembly cost by screwing by multiplying the number of screwing processes for the entire estimation target by the cost per unit process.

  Alternatively, when the accessory information includes the fastening product information, the assembly cost estimation unit 393 may calculate an estimation of the assembly cost based on the accessory information. For example, the assembly cost estimation unit 393 sums up the number of screws indicated in the incidental information for all parts to be estimated. This number of screws is considered to indicate the number of times of screwing. Then, the assembly cost estimation unit 393 multiplies the number of screws by the number of screwing steps per location to calculate the number of screwing steps for the entire estimation target. Further, the assembly cost estimation unit 393 calculates an estimation of the assembly cost by screwing by multiplying the number of screwing processes for the entire estimation target by the cost per unit process.

In addition, the assembly cost estimation unit 393 uses a predetermined coefficient to change the man-hours for the same work depending on whether the assembly worker does not need to move during assembly or when the assembly worker needs to move. Thus, an estimation of the assembly cost may be calculated.
For example, if the assembly object is relatively large and the assembly worker needs to move during assembly, the assembly worker will move less than when the assembly object is relatively small and the assembly worker does not need to move during assembly. It can only take time. Therefore, the third storage unit 380 stores in advance a coefficient for increasing the assembly cost when the assembly worker needs to move during assembly. When it is determined that the assembly worker needs to move during assembly, the assembly cost estimation unit 393 performs correction to increase the value of the assembly cost by multiplying the assembly cost by this coefficient.
The determination of whether or not the assembly worker needs to move during assembly may be performed by the assembly cost estimation unit 393 based on the size of the assembly target. For example, the assembly cost estimation unit 393 determines that the assembly worker needs to move during assembly when the size of the assembly target is larger than a predetermined size.

Further, a marginal cost may be predetermined for each part, and the assembly cost estimation unit 393 may calculate an estimation of the assembly cost including the total of the marginal costs.
Here, the estimation of the assembly cost is an estimation of the human work cost, and an error is likely to occur. In order to avoid that the cost estimate is less than the cost actually required due to this error, the margin may be included in the cost as described above when estimating the assembly cost.

The total cost estimation unit 394 calculates a total cost estimate that is the sum of the component cost and the assembly cost.
For example, when the estimation target is a unit, the total cost estimation unit 394 calculates the total cost of the unit by summing up the part cost of all the parts constituting the unit and the assembly cost of assembling the unit from the parts.
Alternatively, when the estimation target is a product, the total cost estimation unit 394 calculates the total cost of the product by adding up the total cost of each unit constituting the product and the assembly cost of assembling the product from the unit.

Next, the operation of the estimation calculation apparatus 300 will be described with reference to FIGS.
FIG. 5 is a flowchart illustrating an example of a processing procedure in which the estimation calculation apparatus 300 calculates the cost of a product.
For example, every time the user operates the three-dimensional CAD device 100 and the component information is updated, the estimate calculation device 300 performs the process of FIG. Alternatively, when the three-dimensional CAD device 100 receives a user operation for instructing an estimate, the estimate calculation device 300 may perform the process of FIG.
In the process of FIG. 5, the component information acquisition unit 391 acquires component information (step S101).
Next, the estimate calculation apparatus 300 calculates an estimate of the cost of each part constituting the estimation target (step S102).

FIG. 6 is a flowchart illustrating an example of a processing procedure in which the estimate calculation apparatus 300 calculates an estimate of the cost of each component that constitutes the estimation target. The estimate calculation apparatus 300 performs the process of FIG. 6 in step S102 of FIG.
In the process of FIG. 6, the estimation calculation apparatus 300 starts a loop L11 that performs the process for each component constituting the estimation target (step S111). Hereinafter, a part that is a processing target in the loop L11 is referred to as a target part.
In the processing of the loop L11, the component cost estimation unit 392 specifies the material of the target component (step S112). For example, the component cost estimation unit 392 reads information indicating the material from the incidental information of the target component.

Next, the component cost estimation unit 392 calculates the cost estimate of the material specified in step S111 (step S113). For example, the third storage unit 380 stores the material cost for each material in advance. Then, the component cost estimation unit 392 reads the cost of the identified material from the third storage unit 380.
Next, the machining process estimation unit 396 estimates a machining process for machining a material into a part (step S114). For example, the machining process estimation unit 396 calculates the difference between the shape of the material and the shape of the component, such as calculating the difference between the diameter of the material and the diameter of the component. In addition, the third storage unit 380 stores in advance a table indicating the correspondence between the difference between the shape of the material and the shape of the part and the machining process. The machining process estimation unit 396 reads the machining process corresponding to the calculated difference from the third storage unit 380.

Next, the part cost estimation unit 392 calculates a machining cost based on the machining process estimated by the machining process estimation unit 396 (step S115). For example, the third storage unit 380 stores in advance a table indicating a correspondence relationship between the machining process and the machining cost. The component cost estimation unit 392 reads the machining cost corresponding to the machining process with reference to this table.
Next, the component cost estimation unit 392 calculates an estimate of the component cost of the target component (step S116). Specifically, the part cost estimation unit 392 adds up the material cost estimate calculated in step S113 and the machining cost estimate calculated in step S115 for the target part.

Next, the third control unit 390 performs a termination process of the loop L11 (step S117). Specifically, the third control unit 390 determines whether or not the process of the loop L11 has been performed on all the parts constituting the estimation target. When it is determined that there is a component that has not yet been processed in the loop L11, the process returns to step S111, and the processing in the loop L11 is continued for the unprocessed component.
On the other hand, when it is determined that the processing of the loop L11 has been performed on all the parts constituting the estimation target, the third control unit 390 ends the loop L11.
When the loop L11 is terminated in step S117, the process of FIG. 6 is terminated.

When the process in FIG. 6 is completed, the process returns to the process in FIG. 5, and the estimate calculation apparatus 300 calculates an estimate of the cost of each unit (step S103).
FIG. 7 is a flowchart illustrating an example of a processing procedure in which the estimate calculation apparatus 300 calculates an estimate of the cost of each unit. The estimate calculation apparatus 300 performs the process of FIG. 7 in step S103 of FIG.
In the process of FIG. 7, the estimation calculation apparatus 300 starts a loop L12 that performs the process for each unit constituting the estimation target (step S121). Hereinafter, the unit to be processed in the loop L12 is referred to as a target unit.

  In the process of loop L12, the assembly cost estimation unit 393 calculates an estimation of the assembly cost for assembling the target unit from the parts (step S122). For example, the assembly cost estimation unit 393 calculates an estimation of the assembly cost based on the number of processing shapes for assembly as described above. Alternatively, the assembly cost estimation unit 393 may calculate the assembly cost estimate based on the incidental information as described above. Further, as described above, the assembly cost estimation unit 393 is determined in advance to change the man-hours for the same work depending on whether the assembly worker does not need to move during assembly or when the assembly worker needs to move. An estimation of the assembly cost may be calculated using the coefficient.

Next, the assembly cost estimation unit 393 adds the cost for a predetermined margin for each part for all the parts constituting the target unit, and adds it to the estimation of the assembly cost (step S123).
Next, the total cost estimation unit 394 calculates the total cost of the target unit (step S124). Specifically, the total cost estimation unit 394 calculates the total of the cost of each part constituting the target unit and the estimation of the assembly cost including the extra cost in step S123 as the total cost of the target unit. calculate.

Next, the third control unit 390 performs a termination process of the loop L12 (step S125). Specifically, the third control unit 390 determines whether or not the processing of the loop L12 has been performed for all the units constituting the estimation target. If it is determined that there is a unit that has not yet performed the process of the loop L12, the process returns to step S121, and the process of the loop L12 is continued for the unprocessed unit.
On the other hand, if it is determined that the processing of the loop L12 has been performed on all the units constituting the estimation target, the third control unit 390 ends the loop L12.
When the loop L12 is terminated in step S125, the process of FIG. 7 is terminated.

When the process of FIG. 7 is completed, the process returns to the process of FIG. 5, and the assembly cost estimation unit 393 calculates an estimate of the assembly cost for assembling the product from the unit (step S104). For example, as in the case of calculating the assembly cost for assembling the unit from the parts, the assembly cost estimation unit 393 calculates the estimation of the assembly cost based on the number of processing shapes for assembly. Alternatively, the assembly cost estimation unit 393 may calculate an estimation of the assembly cost based on the incidental information. Further, as described above, the assembly cost estimation unit 393 is determined in advance to change the man-hours for the same work depending on whether the assembly worker does not need to move during assembly or when the assembly worker needs to move. An estimation of the assembly cost may be calculated using the coefficient.
In addition, when the processing shape for assembling provided in the part cannot be distinguished from the processing shape for assembling the unit from the part and the processing shape for assembling the product from the unit, the assembling cost estimation unit 393 determines from the part You may make it calculate the sum total of the estimation of the assembly cost which assembles a unit, and the estimation of the assembly cost which assembles a product from a unit. That is, the assembly cost estimation unit 393 may perform the process in step S122 in FIG. 7 and the process in step S104 in FIG.

Next, the total cost estimation unit 394 calculates a product cost estimate. Specifically, the total cost estimation unit 394 calculates the sum of the cost estimate of each unit constituting the product and the estimate of the assembly cost for assembling the product from the unit as the product cost estimate.
After step S105, the process of FIG.

As described above, the part information acquisition unit 391 acquires the part information of each part constituting the estimation target. The component cost estimation unit 392 calculates a component cost estimate for each component based on the component information. The assembly cost estimation unit 393 calculates an estimation of the assembly cost for assembling the estimation target from the parts based on the part information. The total cost estimation unit 394 calculates a total cost estimate that is the sum of the component cost and the assembly cost.
In this way, the estimation calculation apparatus 300 can calculate the cost of the unit and the cost of the product by calculating the estimation of the assembly cost. In this regard, according to the estimate calculation apparatus 300, it is possible to calculate an estimate for a cost other than the component cost.

In addition, the designation acquisition unit 395 acquires designation of a unit to be estimated among products configured by combining a plurality of units.
Thereby, the estimate calculation apparatus 300 can calculate the estimate of the cost of the unit designated by the user, and in this respect, can calculate the estimate according to the user's intention.

Further, the assembly cost estimation unit 393 calculates an assembly cost for assembling the product from the units constituting the product. The total cost estimation unit 394 calculates the total cost of the product by adding up the total cost for each unit constituting the product and the assembly cost for assembling the product from the unit constituting the product.
In this way, the estimate calculation apparatus 300 can calculate the total cost of the product. In this regard, according to the estimate calculation apparatus 300, it is possible to calculate an estimate for a cost other than the component cost.

  In addition, the component information used by the estimate calculation device 300 is generated based on a user operation in the three-dimensional CAD system. Thereby, in the estimation calculation apparatus 300, the user does not need to perform a user operation for separately generating estimation data. In this regard, according to the estimation calculation apparatus 300, the burden on the user can be reduced.

  Further, the machining process estimation unit 396 estimates a machining process from a material to a part by comparing the shape of the part with the shape of the material of the part. The part cost estimation unit 392 calculates an estimation of the part cost based on the machining process estimated by the machining process estimation unit 396. Thereby, in the estimation calculation apparatus 300, the burden that a user performs a user operation to instruct a machining process can be reduced.

In addition, the assembly cost estimation unit 393 counts the number of assembly processing shapes provided in the parts for all the components to be estimated, and adds the number of processes per assembly and the cost per unit man-hour to the number of assembly processing shapes. Is multiplied to calculate the estimated assembly cost for the processing shape for assembly.
Thus, since the estimation calculation apparatus 300 calculates the assembly cost from the shape data of the parts, the user does not need to perform a user operation to input information indicating the assembly process, and this reduces the burden on the user. be able to.

In addition, the assembly cost estimation unit 393 uses a predetermined coefficient to change the number of man-hours for the same work when the assembly worker does not need to move during assembly and when the assembly worker needs to move. Calculate the assembly cost estimate.
Thereby, the estimation calculation apparatus 300 can calculate an assembly cost with high precision according to the aspect of the assembly target.

Further, a marginal cost is determined in advance for each part, and the assembly cost estimation unit 393 calculates an estimation of the assembly cost including the total of the marginal costs.
Thereby, in the estimation calculation apparatus 300, possibility that cost estimation will fall below actual cost can be reduced.

A program for realizing all or part of the functions of the first control unit 190, the second control unit 290, and the third control unit 390 is recorded on a computer-readable recording medium, and the recording medium is recorded on the recording medium. Processing of each unit may be performed by reading a recorded program into a computer system and executing the program. Here, the “computer system” includes an OS and hardware such as peripheral devices.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Design support system 2 3D CAD system 100 3D CAD apparatus 110 1st communication part 120 Display part 130 Operation input part 180 1st memory | storage part 190 1st control part 200 PDM system 210 2nd communication part 280 2nd memory | storage part 290 Second control unit 300 Estimate calculation device 310 Third communication unit 380 Third storage unit 390 Third control unit 391 Part information acquisition unit 392 Part cost estimation unit 393 Assembly cost estimation unit 394 Total cost estimation unit 395 Designated acquisition unit 396 Processing step Estimator

Claims (10)

A component information acquisition unit that acquires component information of each of the components that constitute the estimation target;
A component cost estimation unit that calculates an estimate of the component cost for each component based on the component information;
An assembly cost estimation unit that calculates an estimation of an assembly cost for assembling an estimation target from a part based on the part information;
A total cost estimation unit that calculates an estimate of the total cost that is the sum of the component cost and the assembly cost;
An estimate calculation device comprising: Including a designation acquisition unit that acquires designation of a unit to be estimated among products configured by combining a plurality of units;
The estimate calculation apparatus according to claim 1. The assembly cost estimation unit calculates an assembly cost for assembling the product from units constituting the product,
The total cost estimation unit calculates a total cost of the product by totaling a total cost for each unit constituting the product and an assembly cost for assembling the product from the unit constituting the product.
The estimate calculation device according to claim 2. The component information is generated based on a user operation in a three-dimensional CAD system.
The estimate calculation apparatus as described in any one of Claim 1 to 3. Comparing the shape of the component and the shape of the material of the component, a machining process estimation unit that estimates a machining process from the material to the component,
The component cost estimation unit calculates an estimate of the component cost based on the machining process estimated by the machining process estimation unit.
The estimate calculation apparatus as described in any one of Claim 1 to 4. The assembly cost estimation unit counts the number of machining shapes for assembly provided in the parts for all parts to be estimated, and the number of machining shapes for assembly and the cost per unit man-hour To calculate an estimate of the assembly cost for the processing shape for the assembly,
The estimate calculation device according to claim 1. The assembly cost estimation unit uses a coefficient determined in advance to change the number of man-hours for the same work when the assembly worker does not need to move during assembly and when the assembly worker needs to move. Calculate an estimate of assembly costs,
The estimate calculation apparatus as described in any one of Claim 1 to 6. A marginal cost is predetermined for each part,
The assembly cost estimation unit calculates an estimate of the assembly cost including the total cost of the margin,
The estimate calculation apparatus as described in any one of Claim 1 to 7. Get each part information of the parts that make up the estimation target,
Calculate an estimate of the part cost for each part based on the part information,
An estimate of the assembly cost for assembling the estimation target from the parts is calculated based on the part information,
An estimate calculation method including calculating an estimate of a total cost that is a sum of the component cost and the assembly cost. On the computer,
Get the parts information for each of the parts that make up the estimate,
Based on the part information, let the component cost estimate be calculated for each part,
An estimate of the assembly cost for assembling the estimation target from the parts is calculated based on the part information,
A program for calculating an estimate of a total cost obtained by adding up the component cost and the assembly cost.

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