JP2008269366A - Spot point requirement confirmation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spot point requirement confirmation device capable of efficiently confirming whether a spot point requirement is satisfied or not. <P>SOLUTION: The spot point requirement confirmation device 10 for confirming whether CAD data used for assembling and welding parts satisfy a spot point requirement or not, comprises a first storage part 12A which stores spot welding information composed of a set of parts to be mutually welded and a spot point together with identification information of the parts as CAD data; a second storage part 12B which stores identification information of each part and data of material and plate thickness thereof; a part data table formation part 11B which acquires the data of each part from the second storage part 12B to create a part data table; a spot point requirement registration part 11C which registers spot point requirements as a requirement table; and a determination part 11D which calculates and determines whether the spot welding information satisfies a magnitude relation with a reference value stored in the requirement table from the identification information and spot welding information of each part in the CAD data in reference to the part data table. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a spot spot requirement confirmation device capable of confirming whether CAD data designed by CAD (Computer Aided Design) satisfies a spot spot requirement.

  In each industry including the automobile industry, a design work support system for supporting a design work by performing a design work using a CAD (Computer Aided Design) apparatus has been proposed (Cited Document 1).

  In the automobile body assembly process, spot spot requirements are set in advance to guarantee the quality of spot welding. The spot hitting point requirement is set based on whether the total thickness of the plate material to be spot welded, the ratio of the total plate thickness to the thickness of a specific plate, and the spot welding hit point pitch satisfy the relationship with the reference value. At the time of design, the spot spot requirements are confirmed based on each data such as the spot position, plate set, material, and plate thickness.

By the way, since the assembly design information is created by a CAD system equipped with CAD software, spot welding spot positions and various plate assembly data included in the assembly design drawing are stored as CAD data.
On the other hand, various data such as material and plate thickness as various data of assembly parts are collected in a parts table and managed separately from the CAD system.

Conventionally, by using the standard functions installed in the CAD system, it is confirmed whether or not a part of the spot spot requirement described above is satisfied based on the spot position and plate assembly data of the assembly design information. Data such as plate thickness and material of each part not included is read from the bill of materials, entered manually into the CAD data, and the assembly design information meets the spot dot requirements based on the entered plate thickness and material data. Check if it meets.
JP 2003-216686 A

  By the way, as a standard function in the CAD system, since there is no function to calculate each value of the total plate thickness and the ratio of the total plate thickness to the specific plate thickness among the spot dot requirements, the requirements related to these are automatically confirmed. I couldn't.

  On the other hand, as a standard function in the CAD system, since a function for calculating the dot pitch is installed, the value of the dot pitch can be obtained from the CAD data as the assembly design information, but regardless of the plate set of the parts to be welded. It is uniformly determined whether the requirement regarding the hitting pitch is satisfied based on the input determination reference value.

  As described above, in the conventional CAD system, the parts table is not incorporated and is managed separately. The requirements regarding the total plate thickness and the plate thickness ratio cannot be automatically confirmed. It was not possible to take into account the different points. Therefore, it is necessary to artificially determine whether the total thickness or thickness ratio is individually calculated by comparing the CAD data and the parts table, and whether the relationship with the reference value is satisfied. In addition, since the reference value varies depending on the plate assembly of the parts to be welded, the exact requirements could not be confirmed.

  In view of the above, an object of the present invention is to provide a spot spot requirement confirmation device capable of efficiently confirming whether CAD data satisfies a spot spot requirement.

  In order to achieve the above object, the present invention provides a spot spot requirement confirmation device for confirming whether CAD data used when assembling and welding parts satisfies a spot spot requirement, and includes a set and a spot of parts to be welded. A first storage unit that stores the position as spot welding information and CAD data together with component identification information; a second storage unit that stores identification information, material and plate thickness data for each component; A part data table creation unit that acquires each part data from the storage unit 2 and creates a part data table; a spot dot requirement registration unit that registers spot spot requirements as a requirement table; and component identification information and spots in CAD data Referring to the parts data table from the welding information, calculate whether the spot welding information satisfies the magnitude relationship with the reference value stored in the requirement table Characterized in that it and a determination unit determining Te.

  Therefore, by storing each data for each part corresponding to the conventional parts table in the second storage unit, the part data table creation unit creates the part table data based on the identification information of the part, and the determination unit It is determined whether the requirement table is satisfied after referring to the component data table from the spot welding information of the component in the CAD data stored in the first storage unit. Therefore, it is possible to efficiently confirm whether the spot welding information on the CAD data satisfies the spot dot requirement.

  In the requirement table, preferably, reference values for the thickness of the plate to be welded, the ratio of the plate thickness, and the dot pitch are registered. Since the spot dot requirement registration unit registers the thickness of the plate assembly to be welded, the ratio of the plate thickness, and the reference value of the dot pitch to the requirement table, it is possible to respond flexibly according to the design object.

  Preferably, an error message display control unit is provided that displays a result of the determination unit determining that the spot hitting requirement is not satisfied on an assembly design drawing displayed based on CAD data. As a result, the operator can easily determine a spot that does not satisfy the spot hitting point requirement.

  The component data table creation unit preferably confirms the consistency and deficiency of the data for each component acquired from the second storage unit when creating the component data table, and displays a display prompting data re-input on the display means. The component data table is created in consideration of the operator input information. Thereby, inconsistency and deficiency of each data of the parts stored in the second storage unit can be eliminated, and the spot dot requirement can be efficiently confirmed.

  According to the present invention, it is possible to integrate data relating to each spot-welded part with respect to spot welding design data as CAD data, and it is possible to automatically check whether or not the spot dot requirement is satisfied. Data regarding parts can also be collectively managed, and it is possible to efficiently confirm whether assembly design of a vehicle or the like is appropriate.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block configuration diagram of a spot dot requirement confirmation device 10 according to an embodiment of the present invention. The spot dot requirement confirmation device 10 includes a control unit 11 that is realized by executing a program that realizes a function that will be described later, a storage unit 12 that stores CAD data and data related to parts designed by the CAD function, and an operator. Input means 13 for receiving input information from the display and display means 14 for displaying an operation screen and necessary information to the operator. This spot hitting point requirement confirmation device 10 is preferably built and built in a CAD system or CAD device, and is linked with a CAD function.

The storage unit 12 includes a first storage unit 12A that stores assembly design data designed by CAD as CAD data, and a second storage unit 12B that stores identification information, material, and plate thickness data for each part. And comprising.
The CAD data stored in the first storage unit 12A includes spot welding information consisting of a set of parts to be welded and a spot position, and part identification information.
The second storage unit 12B stores identification information such as a part number, and data regarding material and plate thickness as information for each part. Here, the identification information for identifying the component in the CAD data and the identification information for each component stored in the second storage unit 12B are attached according to the same standard or the identification information on the CAD data. The identification information of the components stored in the second storage unit 12B is associated one-to-one with the correspondence relationship.

  As shown in FIG. 1, the control means 11 is a spot based on each data of components stored in the input / output control section 11 </ b> A that performs interface and control with the input means 13 and the display means 14 and the second storage section 12 </ b> B. A part data table creation unit 11B that extracts data necessary for the spot requirement and creates a part data table, a spot spot requirement registration unit 11C that registers the spot spot requirement as a requirement table, part identification information and spot welding in CAD data A determination unit 11D that calculates and determines whether the spot welding information satisfies a magnitude relationship with a reference value stored in the requirement table by referring to the component data table from the information.

The function of each part of the control means 11 will be described.
The component data table creation unit 11B reads the component data stored in the second storage unit 12B, and there is no inconsistency such as duplication in the read component data, which is necessary for the spot dot requirement. Check if there is no shortage of data or both. When there is inconsistency such as duplication or there is an insufficiency, the part data table creation unit 11B lists each data of the read parts in a table format on the display means 14 via the input / output control unit 11A. And display the list so that the inconsistency in the list display is resolved and the missing column is supplemented to the operator. For example, the duplication of the component data can be confirmed by searching the identification information column and checking whether the same identification information is stored. When the list is displayed on the display unit 14, the cell portion of the identification information of the corresponding component is displayed. Change the background color of. At that time, even if the identification information is the same, if the material or thickness is different, it is determined that there is an inconsistency, and for example, “99” is stored in the inconsistent data column so that re-input is requested. When the plate thickness is blank, data of the same material or plate thickness with the same identification information is adopted, and the background color of the data cell is changed. The component data table creation unit 12B creates a component data table by deleting overlapping parts or supplementing data according to information input from the operator via the input unit 13 by the operator.

  The part data table creation means 11B stores a rank setting table for ranking spot hitting points according to the material of the member to be welded. The spot data is stored from the data on the material of the part stored in the second storage unit 12B. You can also set the rank of the hit points.

In the spot hit point requirement registering unit 11C, the parts to be welded, for example, the thickness of the plate assembly, the ratio of the plate thickness, and the reference value of the hit point pitch are registered. FIG. 2 is a schematic diagram for explaining the conditions of the parts to be spot welded and the spot pitch. The figure shows a case where a first plate member 21 having a plate thickness X, a second plate member 22 having a plate thickness Y, and a third plate member 23 having a plate thickness Z are spot welded. The spot dot requirement is set in advance by the first to third requirements described below, for example.
As the first requirement for spot hitting points, for example, the total thickness of each of the plate members 21, 22, 23 to be welded, that is, the total plate thickness T is the thickness of each of the first, second and third plate members 21, 22, 23. Defined as the sum of X, Y, Z, and the total thickness is below the reference value T ₀ that guarantees the quality, ie,
T (= X + Y + Z) ≦ T ₀ is set.
As a second requirement, the ratio of the total thickness T to the thickness X of the first plate material 21 as the plate material arranged on the outermost side, that is, the plate thickness ratio Tr is set to a reference value Tr ₀ or less that guarantees the quality, that is,
Tr (= (X + Y + Z) / X) ≦ Tr ₀ is set.
As a third requirement, the distance between the hit point positions (locations indicated by x in the drawing), that is, the hit point pitch P is set to be equal to or higher than the reference value P ₀ for guaranteeing the quality, that is, P ≧ P ₀ .
Therefore, the spot hitting point requirement registration unit 11C displays the input screen of the reference values T ₀ , Tr ₀ , P ₀ of the total plate thickness, plate thickness ratio, and pitch on the display unit 14 to the input / output control unit 11A. Instructed, receives input information from the operator to the input means 13, and stores it as a requirement table. Each reference value is set according to the rank and robust level corresponding to the material, so that the requirement can be set according to the spot hitting rank and robust level.

The determination unit 11D acquires the CAD data to be confirmed from the first storage unit 12A, and the spot welding information is spot spot requirement requirements with reference to the component data table from the component identification information and spot welding information in the acquired CAD data. It is determined whether or not the above is satisfied. That is, identification information of parts to be welded is specified from spot welding information on CAD data for each spot hitting point, data for each part is acquired from the part data table based on the specified identification information, and each value relating to spot hitting point requirements In the above-described example, each value of the total plate thickness, plate thickness ratio, and pitch is calculated, and it is determined by referring to the requirement table whether the magnitude relationship with the respective reference values T ₀ , Tr ₀ , P ₀ is satisfied. . This determination processing is performed for all spot hit points on the CAD data selected as the confirmation target. At this time, when there are a plurality of spot hitting point requirements as described above, for example, the total thickness and the plate thickness ratio may be checked or only the hitting point pitch may be checked.

  The determination unit 11D determines whether or not the spot hit point requirement is satisfied at the spot hit point on the CAD data, and instructs the input / output control unit 11A to display on the display unit 14 as follows. For example, if all the requirements are met, the message “Completed successfully” is displayed, or if there is a dot error, for example, “There was a dot error. Total number of dots *** points, total thickness violation * "Point, plate thickness ratio violation * point, pitch violation * point" is displayed. Note that “*” is an arbitrary number.

  Furthermore, the control means 11 includes an error message display control unit 11E. The error message display control unit 11E causes the display unit 14 to display the result determined by the determination unit 11D as not satisfying the spot hitting point requirement as an error message via the input / output control unit 11A. At this time, the violation part is expressed on the assembly design drawing displayed on the display unit 14 based on the CAD data so that the violation part can be visually confirmed. For example, when the violating part is related to the total thickness and the plate thickness ratio, the anti-spot part is colored and expressed in red, and when the error is the dot pitch, each spot is displayed with a line colored in red.

  The input / output control unit 11A causes the operator to display an operation menu on the display unit 14 and causes the input unit 13 to input information on the operation menu from the operator in order to cause the control unit 11 to perform the spot hitting point confirmation process. The display means 14 displays a list of parts data table and the like, and the progress status of the spot dot requirement confirmation process.

  Next, a series of flow of the spot spot requirement confirmation method by the spot spot requirement confirmation apparatus 10 shown in FIG. 1 will be described. FIG. 3 is a flowchart showing a series of flows of the spot hitting point confirmation method.

  The operator selects and inputs part data table creation processing from the operation menu displayed on the input means 13 (STEP 1). Then, the component data table creation unit 11B reads out the data for each component stored in the second storage unit 12B, that is, the component number, material, and plate thickness as identification information. At this time, the inconsistency or deficiency of the data for each part stored in the second storage unit 12B is corrected and supplemented to create a part data table (STEP 6). For example, when there is inconsistency / insufficiency (when there is STEP 2), a re-input instruction is displayed on the display means 14 (STEP 3), and when there is re-input (Y at STEP 4), data correction processing (STEP 5) ) To return to STEP2. Alternatively, the rank may be obtained from the material using a rank setting table provided in the part data table creating unit 11A and added as a data element for each part in the part data table.

  Next, the spot dot requirement confirmation process is selected and input from the operation menu. Then, an input menu for inputting a file name to be confirmed as to whether or not the spot dot requirement is satisfied is displayed, and the file name of CAD data to be confirmed is input. In the input menu, when there are a plurality of spot hitting requirements, a combination menu of requirements is also displayed, and a requirement to be checked is also selected (STEP 7). Then, the determination unit 11D reads the CAD data corresponding to the file name input from the first storage unit 12A (STEP 8), and from the component data table based on the component identification number for each spot hit point on the CAD data. Each piece of data is acquired, and the requirements selected in STEP 7 such as the total thickness T, the plate thickness ratio Tr, and the spot pitch P are calculated (STEP 9). The determination unit 11D determines whether or not the calculated relationship between the calculated value and the reference value registered in the requirement table is satisfied (STEP 10). At that time, as the spot hitting point information of CAD data, when there is robust information on whether general rigidity is sufficient or rigidity should be increased, or when a reference value is set by ranking by material, Determine whether the reference value is met according to robustness and rank. The determination result is displayed on the display means 14.

  If the determination result by the determination unit 11D is OK, the process ends. On the other hand, if the determination result is NG, that is, if there is a spot hitting point that does not satisfy the spot hitting point requirement, the error message display control unit 11E CAD data is acquired from 12A and displayed on the display means 12A via the input / output control unit 11A, and the violation part and violation content are visually displayed (STEP 11).

  The spot dot requirement confirmation process is completed by the above series of processes. However, with respect to a portion that does not satisfy the spot dot requirement, the CAD data is corrected using the CAD function, and the series of processes is performed again.

  As described in detail above, according to the spot dot requirement confirmation apparatus 10 shown in FIG. 1, the data for each part that has been managed as a conventional parts table is stored in the second storage unit 12B, and the part data table creation unit 11B The data for each component stored in the second storage unit 12B is read, and a consistent component data table is created. In this part data table, plate thickness and material data are compiled for each part together with part identification information, and the spot position and the combination of parts in the CAD data to be confirmed are related by the part identification information. Each design value as a requirement is calculated, and it is determined whether the magnitude relationship with the reference value of the requirement table is satisfied. Therefore, each part data and requirement table for CAD data can be integrally handled as various data for checking spot spot requirements, and whether the design data for each spot of CAD data satisfies the spot spot requirement. It is possible to efficiently check whether or not.

  Further, the spot dot requirement confirmation device 10 of the present invention is configured to be incorporated in a CAD system or apparatus having a design CAD function, so that the design data satisfies the spot dot requirement in conjunction with the CAD system or apparatus. In addition to confirming the above, if it is not satisfied, the design data can be easily corrected by the design CAD function.

It is a functional block block diagram of the spot dot requirement confirmation apparatus which concerns on embodiment of this invention. It is a schematic diagram for demonstrating the conditions and spot pitch of the components spot-welded. It is a flowchart which shows a series of flows of the spot spot requirement confirmation method in the spot spot requirement confirmation apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Spot dot requirement confirmation apparatus 11: Control means 11A: Input / output control part 11B: Parts data table creation part 11C: Spot dot requirement requirement registration part 11D: Determination part 11E: Error message display control part 12: Storage means 12A: 1st Storage unit 12B: second storage unit 13: input means 14: display means 21, 22, 23: plate material

Claims (4)

A spot spot requirement confirmation device for confirming whether CAD data used when assembling and welding parts satisfies the spot spot requirement,
A first storage unit that stores a set of parts to be welded and a spot position as spot welding information, and stores the CAD data together with identification information of the parts;
A second storage unit storing each piece of identification information, material, and plate thickness data;
A component data table creation unit that obtains each data of the component from the second storage unit and creates a component data table;
A spot dot requirement registration unit for registering spot dot requirement as a requirement table;
A determination unit that calculates and determines whether the spot welding information satisfies a magnitude relationship with the reference value stored in the requirement table with reference to the component data table from the component identification information and spot welding information in the CAD data;
An apparatus for confirming spot spot requirements, comprising:   2. The spot hitting point requirement confirmation apparatus according to claim 1, wherein the requirement table is registered with reference values of the total thickness of the plates to be welded, the plate thickness ratio, and the hitting point pitch.   The apparatus according to claim 1, further comprising an error message display control unit configured to display a result of the determination unit not determining that the spot hitting requirement is satisfied on an assembly design drawing displayed based on the CAD data. The spot dot requirement confirmation device described.   The component data table creation unit confirms the consistency and deficiency of the data for each component acquired from the second storage unit when creating the component data table, and displays a display prompting data re-input on the display means. The spot hitting point requirement confirmation apparatus according to claim 1, wherein the part data table is created in consideration of input information of an operator.

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