JP4677795B2 - Design support device - Google Patents

Description

  The present invention relates to a design support apparatus that supports a CAD system for creating, for example, a three-dimensional design drawing (three-dimensional design drawing).

  As is well known, for example, in designing a vehicle such as an automobile, a CAD (Computer Aided Design) system is used to create a design drawing. In recent years, a three-dimensional design drawing by a CAD system is used not only in product design but also in various processes of product development such as structural analysis by simulation or the like, prototyping or processing / assembly process.

In order to use the CAD device more effectively, it is generally known that a CAD system is used by adding a function corresponding to each use situation. For example, Patent Document 1 intends to combine a management system and a CAD system, standardize the accumulated design know-how and build it into a management database and a drawing database, and manage and support the design work of the worker. A CAD system is disclosed.
JP 2004-295787 A

  By the way, in designing a vehicle body such as an automobile, for example, when a design drawing is created using a CAD system, design work is generally performed by a plurality of designers. The design drawings of the respective parts designed by each designer are combined, and a design drawing is created by partially correcting as necessary. In the design drawing, not only the shape of each part but also the spot welding position, for example, is shown.

  In the initial stage of development, the design drawing may be reexamined in order to change the design of the spot welding position based on, for example, a structural analysis result such as simulation. In such a case, not only the spot welding position of the part to be reexamined and the spot welding position in the vicinity thereof are verified, but the spot welding positions that can be in the same welding state may be similarly reviewed.

  However, in the design of a car body such as an automobile, the three-dimensional design drawing is very complicated, and in order to verify the spot welding position, a spot welding position having the same welding conditions as a certain spot welding position can be easily obtained. Actually, it is very difficult to display such that it can be seen. This is often more difficult when the design work is shared.

  Therefore, the present invention has been made in view of the above technical problem, and in a CAD system for creating a three-dimensional design drawing, a CAD system that enables to manage and display a spot welding position for each welding condition. It was made for the purpose of providing a design support apparatus.

For this reason, the invention according to claim 1 of the present application is a design support apparatus of a CAD system for creating a three-dimensional design drawing, and includes a spot welding position setting unit that specifies a spot welding position, and the spot welding position setting unit. An ID providing unit that automatically assigns an identification ID to a set spot welding position, and a search unit that can be searched for each identification ID, wherein the ID providing unit has a number of plate materials to be spot welded. A different identification ID is assigned to each different spot welding position .

  The invention according to claim 2 of the present application is characterized in that, in the invention according to claim 1, an ID assignment rule setting unit for setting a setting rule for assigning the identification ID is provided. .

Still further, in the invention according to claim 3 of the present application, in the invention according to claim 1 or claim 2, the ID assigning portion is a spot welding in which the number of plate materials to be welded is different in the same plate material to be spot welded. A different identification ID is given for each position, and the same identification ID is given to spot welding positions where the number of plate members to be welded is the same.

Still further, the invention according to claim 4 of the present application is the invention according to any one of claims 1 to 3 , wherein the ID providing portion is a plate of a plate material to be welded in the same plate material to be spot welded. A different identification ID is assigned to each spot welding position having a different thickness.

According to the design support apparatus according to the invention of claim 1 of the present application, a spot welding position setting unit, and an ID providing unit that automatically assigns an identification ID to the spot welding position set by the spot welding position setting unit; And a search unit that can be searched for each identification ID, the CAD system can manage and display the spot welding position for each welding condition by the identification ID. Verification can be performed relatively easily.
In particular, the ID assigning unit can manage the spot welding position for each number of plate materials to be welded by giving different identification IDs for each spot welding position where the number of plate materials to be spot welded is different, The said effect can be show | played more effectively.

  Further, according to the invention of claim 2 of the present application, basically the same effect as that of the invention of claim 1 can be obtained. In particular, by including an ID provision rule setting unit for setting a setting rule for assigning an identification ID, it is possible to change the setting rule for the identification ID given to the spot welding position. The spot welding position can be managed based on the setting rule, and the above effect can be more effectively achieved.

Furthermore, according to the invention of claim 3 of the present application, basically the same effect as that of the invention of claim 1 or 2 can be obtained. In particular, in the same plate material spot-welded, the ID assigning unit assigns a different identification ID for each spot welding position in which the number of plate materials to be welded is different, and the spot welding position in which the number of plate materials to be welded is the same. By assigning the same identification ID, it is possible to manage the spot welding position for each number of plate members to be welded in the same plate member, and the above effect can be more effectively achieved.

Furthermore, according to the invention of claim 4 of the present application, basically, the same effect as that of any one of claims 1 to 3 can be obtained. In particular, the ID assigning unit assigns a different identification ID to each spot welding position in which the plate thickness of the plate to be welded is different in the same plate to be welded by spot welding, thereby the plate of the plate to be welded in the same plate. The spot welding position can be managed for each thickness, and the above effect can be more effectively achieved.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an explanatory diagram showing a configuration of a system including a design support apparatus according to an embodiment of the present invention.
As shown in the figure, in the system 1 of the present embodiment, a plurality of, for example, five computers 3 to 7 in the present embodiment are connected to the CAD server 8 via the intranet system 2. The CAD server 8 is connected to a CAD device 9. Thereby, a designer who uses each of the computers 3 to 7 can create a three-dimensional design drawing using the CAD device 9 and store the designed data in the CAD server 8.

  The CAD device 9 is further provided with a design support device 10 according to an embodiment of the present invention. As shown in the figure, the design support apparatus 10 automatically assigns an identification ID to a spot welding position setting unit 11 that designates a spot welding position and the spot welding position set by the spot welding position setting unit 11. An ID assigning unit 12 to be assigned and a search unit 13 capable of searching for each identification ID are provided.

  As described above, when designing a vehicle body such as an automobile, a plurality of designers share the design work. Each designer performs design work using the CAD device 9 by the computers 3 to 7 constituting the system 1, and in this embodiment, the design work is divided into the entire vehicle body for each main component. Has been done.

First, in this embodiment, the sharing of the design work of the vehicle body will be described.
Table 1 below shows an example in which the vehicle bodies are grouped into main components. FIG. 2 is a block diagram showing a part of an embodiment in which the vehicle bodies are grouped for each main component.

As shown in the first row of Table 1, in this embodiment, the vehicle body is front end (F END), dash & cowl front floor (DC & F Floor), cab side front (CSF), cab side rear (CSR) ), The design is divided into six groups, R End. In Table 1, a spare is provided so that a further group can be added.
As shown in Table 1 and FIG. 2, the groups of the main components are further divided into four teams, a first part to a fourth part.

  When performing design work by the above grouping, in the present embodiment, the use number of the designer is set in advance. A first hierarchy of usage numbers is set for each group of the main components. As shown in the second row of Table 1, SA1 for the front end group, SA2 for the dash & cowl front floor group, the cab side front, cab side rear and rear end groups are SA3, SA4, and SA5 are used as the first layer of the usage number of the designer, respectively. Note that SA6 to SA9 can be used as spares.

  Furthermore, the second hierarchy of the designer's use number is set for each team, and as shown in the third to sixth rows of Table 1, the first part of the front end group has CA1 to CA1. CAZ can be used as the second hierarchy of usage numbers, and CB1 to CBZ, CC1 to CCZ, and CD1 to CDZ can be used for the second part, the third part, and the fourth part, respectively. Further, CE1 to CEZ can be used in the first part of the dash & cowl front floor group. Others are also set as shown in Table 1. In FIG. 2, the subsequent display is omitted.

In this embodiment, a designer who belongs to the first part of the front-end group designs using SA1-CA1 as the usage number in the CAD system, and another designer uses SA1-CA2 as the usage number. Can be used. Similarly, other designers use the use numbers in which the first hierarchy and the second hierarchy are combined.
Each designer who uses the above-mentioned usage number shares the design using the CAD system as described above.

Below, the design in the CAD apparatus provided with the design support apparatus 10 which concerns on this embodiment is demonstrated.
FIG. 3 is an explanatory diagram showing a part of a three-dimensional design drawing created by a CAD device. FIG. 3 shows a design drawing by the designers of the first part of the group whose main component is the front end, and shows two elongated plates W1 and W2. The plate material W1 has a bottom surface W1a and side surfaces W1b, W1c, and is designed to have a substantially cross-sectional concave shape (see the two-dot chain line in FIG. 3). Flange portions W1d and W1e projecting outward are provided at the upper ends of the side surfaces W1b and W1c of the plate material W1, respectively. The plate member W2 has substantially the same shape as the plate member W1, and is superimposed on the lower side of the plate member.

  Two plate members W3 and W4 are disposed inside the plate member W1, and flange portions W3a and W3b disposed along side surfaces W1b and W1c of the plate member W1 are substantially disposed at the end of the plate member W3. The flange portion W3c joined to the bottom surface W1a of the plate material W1 is designed to be bent at a substantially right angle at the lower end portion of the plate material W3.

  As described above, the plate material W4 is disposed inside the plate material W1, the flange portions W4a, W4b, W4c, and W4d are provided at the periphery thereof, and the bulging portion W4e that is bulged is provided at the center portion thereof. Yes. The flange portions W4a and W4c are respectively disposed along the side surface W1b and the bottom surface W1a of the plate material W1.

  After setting the shape and arrangement of the plate materials in this way, the joining positions for joining the respective plate materials are designed. In this embodiment, since this joining is performed by spot welding, the spot welding position is designated by the spot welding position setting unit. In the present embodiment, in designing the spot welding position, not only the position to be welded can be specified, but also, for example, welding conditions at the spot welding position can be input.

  As the welding conditions at the spot welding position, the type of welding, the place of use, the number of plates to be welded, the quality rank of welding, and the like can be input, and additional notes can also be input. In this embodiment, the welding type can be selected from three types of electric resistance welding, arc welding, or brazing welding, and the use location is only on the left side (LH Only), only on the right side (RH Only), or both left and right. (R / L) can be selected from three types, and the quality rank of welding can be selected from three levels from Rank A to Rank C in descending order of quality.

  A spot welding position having the above welding conditions is displayed on a three-dimensional CAD drawing. In the present embodiment, the spot welding position is indicated by a mark corresponding to the number of plate members to be welded. When two plates are joined, they are indicated by ◇, and when three plates are joined, they are indicated by ▲.

  In FIG. 3, spot welding positions for joining plate members are set. A 溶 接 mark is displayed at the spot welding position A1 set on the bottom surface W1a of the plate member W1, and the number “CA1-1” is attached to the upper right portion thereof. This number indicates that the position is set by the designer having the usage numbers SA1 to CA1. Further, the number “CA1-2” is attached to the spot welding position A2.

  On the other hand, a ▲ mark is displayed at the spot welding position A3 set in the flange portion W4a of the plate member W4, and the number “CA2-1” is attached to the upper right portion thereof. This position A3 is designed by the designer who has the usage numbers SA1-CA2. As shown in FIG. 3, the other spot welding positions are set in the same manner, and numbers are assigned respectively. In addition, in FIG. 3, in order to avoid that it becomes difficult to see a figure excessively, the number attached | subjected to the spot welding position is displayed about one part, However, actually, the number is attached about all the spot welding positions. It is attached.

  After the spot welding position having the welding conditions is set as described above, an identification ID is automatically given to the spot welding position by the ID giving unit according to the present embodiment. The ID assigning unit assigns an identification ID based on welding conditions such as a plate material to be welded, a type of welding, a use location, the number of plate materials to be welded, and a quality rank of welding.

FIG. 4 shows a design after the identification ID is assigned to the spot welding position. In FIG. 4, as in FIG. 3, only a part of the identification IDs at the spot welding positions are shown, but identification IDs are assigned to all spot welding positions.
An identification ID “C03” is assigned to the upper right portion of the ◇ mark at the spot welding position A1. A number for distinguishing spot welding positions having the same identification ID is provided, and "C03_1" is displayed at the spot welding position A1. “C03_2” is displayed at the spot welding position A2 where the welding conditions are the same as the position A1, and “C03” is assigned as the identification ID, which is the same as the spot welding position A1. Similarly, other spot welding positions are assigned the same identification ID to spot welding positions having the same welding conditions, and different identification IDs are assigned to spot welding positions having different welding conditions.

  Further, a note N1 is displayed at the spot welding position A2 by a leader line. The note N1 can display the welding condition and the plate material to be welded. As shown in FIG. 4, note N1 indicates that the welding type is electrical resistance welding “SW”, the number is 30 “n = 30”, and the welding location is “R / L” on both the left and right sides. The plate materials “W1” and “W2” to be joined are displayed. The number represents the number having the same identification ID, and indicates that there are 30 spot welding positions that can be in the same welding state as the position A2.

  A display example of such a note is shown in Table 2 below. Examples of three types of welded parts are shown. As described above, as an example of the electric resistance welded part, the welding type is electric resistance welding “SW”, the number is 5 “n = 5”, and the use location is only on the right side. “RH Only”, welding quality rank “Rank A” and “Addition” “***” can be displayed. In the present embodiment, these five items can be selected and displayed. Further, in the present embodiment, the note of the spot welded portion is displayed in the drawing. However, for the arc welded portion and the brazed welded portion, for example, the note as shown in Table 2 can be displayed. In Table 2, the welding types of the arc welded part and the brazed welded part are respectively indicated as “OSW” and “OEW”, and the number of welds in the brazed welded part is, for example, “L = 10 × 2”. It can be displayed including size.

  FIG. 5 is an enlarged plan view showing a part of FIG. “C01_2” is displayed at the spot welding position A4 indicated by the mark ▲, and a note N2 is marked through the leader line. Since the number of plates that are spot welded differs from the spot welding position A1 by the ID providing unit, a different identification ID “C01” is assigned to the position A4. In this position A4, as shown in the note N2, three plate materials W1, W2, W3 are welded. Five spot welding positions A4 to A8 are set on the plate W3, and "C01_1" to "C01_5" are displayed at the respective positions A4 to A8. The spot welding positions A4 to A8 having the same welding conditions are assigned the same identification ID “C01” so that the number “n = 5” is displayed in the note N2.

  FIG. 6 is an enlarged plan view of another part of FIG. “C02_1” is displayed at the spot welding position A9 displayed with a mark ▲, and a note N3 is marked through the leader line. The position A9 is assigned an identification ID “C02”, and is designed so that three plate materials W1, W2, and W4 are welded as indicated by a note N3. In the plate material W4, nine spot welding positions A9 to A17 having the same welding conditions are assigned the same identification ID “C02”, and “C02_1” to “C02_9” are displayed at the respective positions A9 to A17. The In FIG. 6, the identification IDs “C02_7” to “C02_9” are omitted.

  The ID assigning unit similarly assigns an identification ID to other spot welding positions. In the present embodiment, as shown in FIG. 4, three types of identification IDs “C01”, “C02”, or “C03” are assigned to the spot welding positions, and spot welding positions having the same identification ID are Spot welding positions having the same welding conditions and different identification IDs have different welding conditions.

  FIG. 7 is an explanatory diagram showing a part of the design drawing searched by the search unit according to the present embodiment. The search unit can search for a spot welding position for each identification ID. In FIG. 7, the spot welding position having the identification ID “C02” is searched, and only the spot welding positions indicated by ▲ having the identification ID “C02” are displayed. Similarly, other identification IDs can be searched and displayed for each identification ID.

As described above, according to the design support apparatus according to the present embodiment, the spot welding position setting unit, the ID giving unit that automatically gives the identification ID to the spot welding position set by the spot welding position setting unit, And a search unit capable of searching for each identification ID. In the CAD system, the spot welding position can be managed and displayed for each welding condition by the identification ID, and the spot welding position can be verified. It can be done relatively easily.
Since the spot welding position can be displayed for each welding condition, when teaching a welding robot using a three-dimensional design drawing, the teaching verification can be performed relatively easily.

  Moreover, since the ID provision part of the said design support apparatus provides different identification ID for every spot welding position from which the number of the plate materials spot welded differs, it can manage a spot welding position for every number of the plate materials welded. This is possible, and the above effect can be more effectively achieved.

  Since the ID provision part which concerns on this embodiment provides identification ID according to welding conditions in a spot welding position, in the same plate material spot-welded, the identification which differs for every spot welding position from which the number of the plate materials welded differs ID is given and the same identification ID is given to the spot welding positions where the number of plate members to be welded is the same.

  Moreover, the said ID provision part provides identification ID for every spot welding position from which the plate | board thickness of the board | plate material welded differs in the same board | plate material spot-welded. In addition, the ID assigning unit has a plate thickness of the plate material to be welded in spot welding of the same plate material at a lower hierarchy as shown in the design diagram of the first part of the front floor group shown in the present embodiment. Different identification IDs can be assigned to different spot welding positions.

  As described above, in the same plate material to be spot-welded, the ID providing unit provides a different identification ID for each spot welding position where the number of plate materials to be welded is different, and the number of plate materials to be welded is the same. Since the same identification ID is given to the welding position, it is possible to manage the spot welding position for each number of the plate materials to be welded in the same plate material, and the spot welding position can be verified relatively easily. it can.

Moreover, since the said ID provision part provides different identification ID for every spot welding position from which the plate | board thickness of the board | plate material welded differs in the same board | plate material spot-welded, the board | plate of the board | plate material welded in the same board | plate material The spot welding position can be managed for each thickness, and the above effect can be more effectively achieved.
When the plate material is a tailored blank material obtained by welding a plurality of steel plates having different plate thicknesses, the spot welding position can be managed for each plate thickness of the plate material.

  Furthermore, since the ID assigning unit assigns different identification IDs in the lower layers for each spot welding position where the plate thickness of the plate to be welded is different in spot welding of the same plate, the welding of the same plate is performed. The spot welding position can be managed for each plate thickness of the plate material to be welded, and the above-described effects can be more effectively achieved.

  In the present embodiment, as described above, for example, when the position and the welding condition of the spot welding position are changed based on an analysis result such as a simulation, the CAD is changed from blue to red, for example. The display color of the identification ID is changed on the screen. Thereby, it can confirm easily that the spot welding position was changed and verification of a spot welding position can be performed more effectively. Further, when the spot welding position is changed, the change history is stored for each spot welding position, and the change history can be confirmed.

Moreover, in this embodiment, although identification ID can be provided for every welding condition in a spot welding position, the design support apparatus which concerns on this embodiment is for giving identification ID like a welding condition etc., for example. An ID assignment rule setting unit for setting setting rules is also provided.
Thereby, the setting rule of the identification ID given to the spot welding position can be changed, and the spot welding position can be managed based on the changed setting rule.

In the present embodiment, it is shown that spot welding positions are displayed for each identification ID in the team hierarchy of the first part of the group whose main component is the front end. For other teams, the spot welding position can be managed for each identification ID in the same manner, and can also be performed in the same manner in the hierarchy of the group or the entire vehicle body.
The design support apparatus according to the present embodiment includes an extraction unit that extracts spot welding positions having the same identification ID for each layer.
Thereby, the spot welding position can be managed and displayed according to the hierarchy, and the spot welding position can be verified more effectively.

  In the present embodiment, when the spot welding position is set, the use number of the designer such as “CA1-1” is written, but a number normally used in the CAD apparatus may be attached, or The number may not be attached. Even in this case, the set spot welding position can be automatically given an identification ID by the ID giving unit according to the present embodiment.

  As described above, the present invention is not limited to the illustrated embodiments, and it goes without saying that various improvements and design changes can be made without departing from the gist of the present invention.

  The present invention is a design support apparatus that supports a CAD system, and can assign an identification ID to a spot welding position. For example, when creating a design drawing using a CAD system, such as designing a vehicle such as an automobile. It is applicable to.

It is explanatory drawing which showed the structure of the system provided with the design assistance apparatus which concerns on embodiment of this invention. It is the block diagram which showed a part of Example which grouped the vehicle body for every main structure part. It is explanatory drawing which showed a part of three-dimensional design drawing created with the CAD apparatus. It is a design drawing after giving identification ID to a spot welding position. It is the design drawing which expanded and showed a part of FIG. It is the design drawing which expanded and showed another part of FIG. It is explanatory drawing which showed a part of design drawing searched by the search part which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 9 CAD apparatus 10 Design support apparatus 11 Spot welding position setting part 12 ID provision part 13 Search part W Plate material A Spot welding position

Claims (4)

A CAD system design support device for creating a three-dimensional design drawing,
A spot welding position setting section for specifying a spot welding position;
An ID assigning unit that automatically assigns an identification ID to the spot welding position set by the spot welding position setting unit;
A search unit capable of searching for each identification ID;
Equipped with a,
The ID assigning unit assigns a different identification ID for each spot welding position in which the number of plate members to be spot welded is different.
A design support apparatus characterized by that.   The design support apparatus according to claim 1, further comprising an ID addition rule setting unit configured to set a setting rule for assigning the identification ID.   The ID assigning unit assigns a different identification ID to each spot welding position in which the number of plate materials to be welded is different in the same plate material to be spot welded, and is the same as a spot welding position in which the number of plate materials to be welded is the same. The design support apparatus according to claim 1, wherein the identification ID is assigned. The ID assignment unit, in the same plate to be spot welded, one of claims 1 to 3, characterized in that impart different identification ID each plate thickness is different spot welding position of the plate to be welded The design support apparatus according to 1.

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