JPH10162042A - Layout method of members in NC fusing - Google Patents

Abstract

(57) [Problem] To improve a product yield by arranging members so that an empty area between members is minimized. SOLUTION: A data taking step (S1, S2) for taking in a plurality of member shape data, a surplus shape creating step (S3) for creating a surplus shape for machining with respect to the taken in member shape data, A fusing shape line determining step (S8) for determining a fusing shape line based on the created surplus shape, and a fusing allowance adding step (S8) for adding a fusing allowance to the determined fusing shape line.
9) and minimize the empty area between each member.
The members are laid out by a layout step (S10) for arranging each member and a fusing path data creating step (S11, S12) for creating fusing path data based on the layout of each member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of laying out a plurality of members from a raw material plate by NC fusing.

[0002]

2. Description of the Related Art Conventionally, in order to form a plurality of members from a raw material plate by NC fusing, as shown in FIG.
Is approximated by a rectangular shape, and the approximate shape is moved in parallel in the X and Y directions, that is, a so-called claw processing is performed, and each member P is arranged on the base material M.

[0003]

However, in the above-described conventional member layout method, the members are arranged without considering the shape of each member. Has a problem that the yield rate is low.

Therefore, the present invention has been proposed in view of the above-mentioned problems of the prior art, and has the following objects.

It is an object of the present invention to improve the yield rate of products by arranging the members so that an empty area between the members is minimized.

The object of the invention according to claim 2 is, in addition to the object of the invention according to claim 1, by arranging each member so that a member having a free-form or a similar shape is paired, thereby providing a product. The purpose is to improve the yield rate.

A third object of the present invention is to obtain a combination type of each member and detect a paired member for each combination type in addition to the object of the second invention. The point is that the member pair can be easily found.

The object of the invention described in claim 4 is, in addition to the object of the invention described in any one of claims 1 to 3, by arranging members in empty areas between the members. Another object of the present invention is to improve the product yield.

The invention according to claim 5 is the above-described claim 1.
In addition to the object of the invention according to any one of claims 4 to 5, the arranged members are moved in the X and Y directions to reduce the empty area between the members, thereby further increasing the product yield rate. Is to improve.

[0010]

According to the first aspect of the present invention,
When a plurality of members are formed from a raw plate material by NC fusing, a data capturing step of capturing a plurality of member shape data, and a surplus shape forming for creating a surplus shape for machining based on the captured member shape data. Process, a fusing shape line determining step of determining a fusing shape line based on the created surplus shape, a fusing allowance adding step of adding a fusing allowance to the determined fusing shape line, and an empty area between each member is minimized. In order to limit the layout, each member is arranged by a layout process of arranging each member and a fusing route data creating process of creating fusing route data based on the layout of each member.

The invention according to claim 2 is the above-described claim 1.
In addition to the configuration of the invention described above, in the layout step, NC
From among the plurality of members to be blown, a member having an arbitrary shape or a similar shape is detected, and the members having the arbitrary shape or a similar shape are paired and arranged.

[0012] The third aspect of the present invention is the second aspect of the present invention.
In addition to the configuration of the invention described above, in the layout step, a combination type of each member is obtained, and a paired member is detected for each combination type.

The invention according to claim 4 is the above-described claim 1.
In addition to the configuration according to any one of the third to third aspects, in the layout step, an empty area between the arranged members is detected, and the members are arranged in the empty area.

The invention according to claim 5 is the above-described claim 1.
In addition to the configuration of the invention according to any one of claims 4 to 6, in the layout step, the arranged members are moved in the X and Y directions, and the members are arranged so as to reduce the empty area between the members. I do.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. (Explanation of Drawings) FIGS. 1 to 6 show a procedure of a member layout method in NC fusing according to the present invention.
FIG. 1 is a general flowchart, FIG. 2 is a flowchart showing a procedure of the automatic layout processing shown in FIG. 1,
3 to 5 are flowcharts showing the procedure of the combination type calculation processing shown in FIG. 2, and FIG. 6 is a flowchart showing the procedure of the hollow area detection processing and the member arrangement processing in the hollow area shown in FIG. It is.

FIGS. 7 to 11 are explanatory views for explaining the procedure of laying out members. FIG. 7 is an explanatory view of CAD data taken into a database, and FIG. 8 is a surplus shape for machining. Explanatory diagram of a member layout in which is formed,
9 is an explanatory diagram of a member layout in which a fusing shape line is determined, FIG. 10 is an explanatory diagram of a member layout to which a fusing allowance has been added, and FIG. 11 is an explanatory diagram of the arrangement of automatically laid out members.

FIG. 12 is an explanatory view showing a typical example of the combination type, FIG. 13 is an explanatory view for explaining how to obtain the combination type, FIG. 14 is an explanatory view of members of the combination type 2, and FIG. Is an explanatory view of members of combination type 3, FIG.
18 are explanatory diagrams illustrating member combinations for each combination type, and FIG. 19 is an explanatory diagram illustrating members arranged in empty areas.

(Outline of Member Layout Method) A schematic procedure of a member layout method according to the present invention will be described with reference to FIGS. 1 and 7 to 11. In order to lay out members, first, frame data of a base material is selected (S1), and C
Synthesize shape data from AD data file (S
2). The shape data taken in from the CAD data file is, for example, design data of each member as shown in FIG. The data acquired from the CAD data file includes shape data (for example, polyline, circle, arc),
Only balloon data. Next, a surplus shape is created for the captured shape data (S3). The surplus shape is created, for example, as shown in FIG.

Next, shape data of the missing part is created (S4). At this time, at the same time, the thickness of the member and the part number are input, and the gate number is input. Next, each member is rearranged for each plate thickness (S5), and each member is divided for each plate thickness (S6). That is, the subsequent layout processing is performed for each sheet thickness. Next, the longest line segment is searched, and the member is rotated so that the longest line segment is in the horizontal direction (S7).

Next, by searching for polylines, circles and arcs and checking seams, a one-stroke closed polyline is created (S8). This closed polyline becomes a fusing shape line and is formed, for example, as shown in FIG. Next, search for the closed polyline, leaving the fusing allowance,
An offset polyline is created (S9). The fusing allowance is
For example, it is set to 1.0 mm, and formed as shown in FIG. In the case of a punched hole, the fusing margin is cut slightly larger. Next, automatic layout processing of each member (S1
0) is performed to lay out each member on the base material. Each member is laid out on the base material by the automatic layout process (S10), for example, as shown in FIG. This automatic layout processing (S10) will be described later in detail.

Next, the fusing path data is automatically created (S1).
1) Manually correct the automatically created data (S
12). In addition, when data is manually corrected, a hole is defined. Next, the automatically created and manually corrected data is registered (S13). Next, post-processor processing (S14) is performed to output layout plot diagrams, NC data including gate numbers, and part number plot NC data. Next, the NC data is downloaded to the key station of the DNC (S15), the NC data is read into the NC fusing device (S16), and the NC fusing is performed (S17).

Each member that has been NC-blown in this manner is
It falls on a belt conveyor (S18) and is sorted by a sorting machine based on the part number (S19).

(Automatic Layout Processing) Based on FIG.
The above-described automatic layout processing (S10) will be described in more detail. In the automatic layout processing (S10), first,
Data such as the size (vertical dimension, horizontal dimension) of the base material, the gap in the X and Y directions of each member, a comment, a drawing name including a data creator and a data creation date are input (S20). here,
The size and the like of the base material are automatically set from the drawing frame data.
The default value of the gap between the members is 10 mm in each of the X and Y directions.

Then, the MASK value of each VIEW is determined (S2
1), the origin of each VIEW is set to the lower left of the MASK value, coordinate conversion is performed, and each VIEW is rotated so that the longitudinal direction becomes the X axis (S
22). Next, a combination type calculation process (S23) for obtaining a paired combination type is performed. In the combination type calculation processing (S23), the area of each member is obtained to determine the combination type. The types of combination types are, for example, three types, that is, type 1, type 2, and type 3, as shown in FIG. This combination type operation processing (S23)
Details will be described later.

Next, coordinate conversion is performed to each type of reference type (S24). The coordinate conversion to the reference type is performed by mirror processing or rotation processing. Next, a table of all VIEWs is created in the order of the longitudinal direction of the VIEWs (S25).
Next, a layout is performed using the MASK value in VIEW units (S2
6) The distance between the point and the straight line in the Y direction is calculated (S27), members having the same combination type and substantially the same area are detected as a pair, and the members are laid out (S28).

Here, it is determined whether or not the layout of one row has been completed (S29). If the layout of one row has not been completed, the process returns to the layout processing in VIEW units (S26). On the other hand, if the layout of one row is finished,
In the same column, the distance between the point and the straight line in the X direction is calculated (S3
0), terminal layout processing in the Y direction (S31) is performed.
Next, the process of detecting the hollow area existing between the members (S3
2) is performed, and the members are arranged in the hollow area so as to obtain the best member arrangement (S33). In arranging the members in the hollow area, a total of eight arrangement methods are tried by rotating the members every 90 ° or performing a mirror conversion to find the best member arrangement. This hollow area detection processing (S3
2) and the hollow area member arrangement processing (S33) will be described later in detail.

Next, it is determined whether or not the layout for the base material has been completed (S34). If the layout has not been completed, the flow returns to the layout processing in VIEW units (S26).

On the other hand, if the layout has been completed, the filling rate is calculated and displayed (S35), and a part number process (S36) is performed so that the part number is at the center of the plate material.
An automatic fusing route process (S37) for setting the fusing route direction is performed. In this automatic fusing route processing (S37), for example,
The first stage sets an automatic fusing in a counterclockwise direction, and the second stage sets a fusing path so as to perform an automatic fusing in a clockwise direction.

Next, the layout data is registered in the database (S38), and it is determined whether the layout of all members has been completed (S39). Here, if the layout of all members has been completed, the process is terminated. If all the members cannot be laid out on one base material, the above-described automatic processing is performed for the next base material. Layout processing (S26 ~
S38) is executed.

(Combination Type Operation Processing) The combination operation processing (S23) described above will be described in further detail with reference to FIGS. 3 to 5 and FIGS. 13 to 15. In the combination type calculation processing (S23), first, a polyline of the member shape line is read into the work area (S40). Then, a mask polyline is created from the shape mask value by scanning in the X direction, and the area of the mask shape is determined (S4).
1).

Next, the X-ray component is increased by ΔX in the X direction (S
41), it is determined whether or not the X-ray segment is larger than the X mask value (S43). Here, when the X-ray segment is larger than the X mask value, a ratio determination process between the partial shape area and the mask shape area, which will be described in detail later, is performed (S52 and thereafter).

On the other hand, when the X-ray segment is smaller than the X mask value, the intersection of the X-ray segment with the mask polyline and the shape closed polyline is calculated (S44). Then, it is determined whether or not there is an intersection between the X-ray segment and the mask polyline and the shape closed polyline (S45). If there is no intersection, the process returns to the ΔX increase process (S42).

On the other hand, if there is an intersection between the X-ray segment, the mask polyline and the shape closed polyline, the emphasis is deleted (S46), and it is determined whether or not the number of intersections is even (S4).
7). Here, when the number of intersections is odd, ΔX
The process returns to the minute increasing process (S42).

On the other hand, when the number of intersections is an even number, rearrangement is performed in ascending order of the Y value (S48), and the distance between the shape line and the intersection is determined, and the area of the member shape is determined (S49).

Next, the distance between the concave shape and the intersection point is obtained, and the area smaller than the X center of the concave shape (SUB-TY
PE) and the area larger than the concave X center (SUB
-TYPE) (S50). Next, the distances of the four corners are obtained, and the areas of the four corners are obtained (S51). Next, it is determined whether or not the partial shape area is 90% or more of the mask shape area (S52).

Here, if the partial shape area is 90% or more of the mask shape area, it is determined to be a type 1 shape (S5).
3). This type 1 shape is, for example, a trapezoidal shape as shown in FIG. In the case of this type 1 shape, the combination layout is not performed (S5
4). On the other hand, when the partial shape area is less than 90% of the mask shape area, the occupied area of the concave portion is 10% of the mask shape area.
% Is determined (S55).

Here, if the occupied area of the concave portion is 10% or more of the mask shape area, it is determined to be a type 2 shape and the SU
B-TYPE takes the larger area with (S5
6). The type 2 shape is, for example, a concave shape as shown in FIG. Further, as shown in FIG. 14, there are four SUB-TYPEs rotated by 90 ° from each other in the type 2 shape, and in the present embodiment, the case of an upward concave shape is used as a reference SUB-TYPE.

On the other hand, when the occupied area of the concave portion is less than 10% of the mask shape area, it is determined to be a type 3 shape, the area where the four corners have the maximum area is detected, and the corner number is set to SUB-TYPE.
(S57). This type 3 shape is, for example,
This is a crank shape as shown in FIG. 12 or a triangular shape as shown in FIG. In addition, as shown in FIG.
There are two SUB-TYPEs, and in this embodiment, the case where the member is located on the lower left corner side is set as the reference SUB-TYPE. Next, it is determined whether the shape is a type 1 shape or a type 3 shape (S58). If the shape is a shape other than these, that is, a type 2 shape, the process ends.

On the other hand, in the case of the type 1 shape or the type 3 shape, scanning in the Y direction is further performed. In the scanning in the Y direction, substantially the same processing as in the scanning in the X direction is performed. That is, first, a mask polyline is created from the shape mask value, the area of the mask shape is determined (S59), and the Y line segment is increased by ΔY in the Y direction (S60).

Next, it is determined whether or not the Y line segment is larger than the Y mask value (S61). If the Y line segment is smaller than the Y mask value, it is determined that the shape is of type 1 (S62). No layout is performed (S63). Then, it is determined whether or not there is an intersection of the Y line segment with the mask polyline and the shape closed polyline (S65). If there is no intersection, the process returns to the ΔY increase process (S61).

On the other hand, if there is an intersection of the Y line segment with the mask polyline and the shape closed polyline, the emphasis is deleted (S66), and it is determined whether or not the number of intersections is even (S6).
7). Here, when the number of intersections is odd, the above-described ΔY
The process returns to the minute increasing process (S61). On the other hand, when the number of intersections is an even number, rearrangement is performed in ascending order of the X value (S68), the distance between the shape line and the intersection is determined, and the area of the member shape is determined (S69).

Next, the distance between the concave shape and the intersection is determined, and the area (SUB-TY) smaller than the Y center of the concave shape is determined.
PE) and the area larger than the concave Y center (SUB
-TYPE) (S70).

Then, it is determined whether or not the occupied area of the recess is 10% or more of the mask shape area (S71). If the occupied area of the recess is 10% or more of the mask shape area, the type 2 shape is determined. Judgment is made, and SUB-TYPE takes the one with the larger area (S72).

On the other hand, when the occupied area of the concave portion is 10% of the mask shape area, it is determined that the area is of type 1 or type 3. After the combination type is determined according to the above-described procedure, as described above, the paired member is detected,
Combine the members. For example, as shown in FIG. 16, when it is determined that the shape is a type 1 shape, there is no paired member.

As shown in FIG. 17, when it is determined that the shape is the type 2 shape, the SUB-TYPE and SUB-TYP
Combine pairs of members so that E or a combination of SUB-TYPE and SUB-TYPE.

Similarly, as shown in FIG. 18, when it is determined that the shape is of type 3, the SUB-TYPE and SUB-
The members of the pair are combined so as to be TYPE or a combination of SUB-TYPE and SUB-TYPE (not shown).

(Hollow Area Detection Processing, Member Arrangement Processing in Hollow Area) Next, based on FIGS. 5 and 19, the above-described hollow area detection processing (S32) and member arrangement processing in hollow areas (S33) will be described. This will be described in more detail. Hollow area detection processing (S32), member arrangement processing in hollow areas (S32)
In 33), first, the intersection of the X-ray segment, the mask polyline, and the shape closed polyline is calculated from the X direction (S8).
0), a location where the distance in the X direction of the empty area can be secured to 60 mm or more is searched (S81).

Next, the Y direction is assigned to the center,
The intersection of the line segment with the mask polyline and the shape closed polyline is calculated (S82), and the distance of the empty area in the Y direction is 60 m.
A place where m or more can be secured is searched (S83). Then, the empty area is secured by the mask value (S84), and the members are laid out while performing the intersection check on the plurality of empty areas (S84).
85).

In the example shown in FIG. 19, the member (12) is arranged in an empty area between the members (2) and (2) arranged in the first stage.

(Example of Member Layout) Next, the base material M when the member P is arranged using the above-described member layout method is replaced with the mother material when the member P is arranged using the conventional member layout method. A description will be given in comparison with the material M.

FIG. 20 is a plan view of the base material when the members are arranged in pairs according to the combination type, FIG. 21 is a plan view of the base material when the members are arranged in the empty area, and FIG. FIG. 5 is a plan view of the base material when the members are arranged in pairs and the members are arranged in empty areas.

As shown in FIG. 23, when the members P are arranged using the conventional member layout method, all members P
In order to arrange ..., 2753 mm in the longitudinal direction of the base material M
Needed.

On the other hand, as shown in FIG. 20, when members P are arranged in pairs by combination type, all members P can be arranged within 2632 mm in the longitudinal direction of the base material M. .

Further, as shown in FIG. 21, when the member P is disposed in the empty area,
All members P can be arranged within 3 mm.

Further, as shown in FIG. 22, when the members P are arranged in pairs according to the combination type, and when the members P are arranged in the empty areas, two members P in the longitudinal direction of the base material M are formed.
All members P can be arranged within 356 mm.

[0056]

Since the present invention has the above-described structure,
The following effects can be obtained.

According to the first aspect of the present invention, by arranging the members so that an empty area between the members is minimized, it is possible to improve a product yield.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, by arranging each member so that a member of a selfish shape or a similar shape is paired, a product yield rate is improved. Can be improved.

The object of the invention according to claim 3 is that, in addition to the effect of the invention described in claim 2, the combination type of each member is obtained, and a paired member is detected for each combination type. A pair of members can be easily found.

The object of the invention described in claim 4 is that, in addition to the effects of the invention described in any one of claims 1 to 3, by arranging members in empty areas between the members, Further, the product yield can be improved.

According to the fifth aspect of the present invention, there is provided the first aspect of the present invention.
5. In addition to the effects of the invention according to any one of claims 4 to 4, by moving the arranged members in the X and Y directions to reduce the empty area between the members, the product yield rate is further improved. Can be improved.

[Brief description of the drawings]

FIG. 1 is a general flowchart of a layout method of members in NC fusing according to the present invention.

FIG. 2 is a flowchart showing a procedure of an automatic layout process shown in FIG. 1;

FIG. 3 is a flowchart showing a procedure of a combination type calculation process shown in FIG. 2;

FIG. 4 is a flowchart illustrating a procedure of a combination type calculation process illustrated in FIG. 2;

FIG. 5 is a flowchart showing a procedure of a combination type calculation process shown in FIG. 2;

FIG. 6 is a flowchart showing a procedure of a hollow area detection process and a process of arranging members in a hollow area shown in FIG. 2;

FIG. 7 is an explanatory diagram of CAD data taken into a database.

FIG. 8 is an explanatory diagram of a member layout in which a surplus shape for machining is formed.

FIG. 9 is an explanatory diagram of a member layout in which a fusing shape line is determined.

FIG. 10 is an explanatory diagram of a member layout to which a fusing allowance is added.

FIG. 11 is a diagram illustrating the arrangement of automatically laid out members.

FIG. 12 is an explanatory diagram showing a typical example of a combination type.

FIG. 13 is an explanatory diagram illustrating how to determine a combination type.

FIG. 14 is an explanatory view of members of combination type 2.

FIG. 15 is an explanatory view of members of combination type 3;

FIG. 16 is an explanatory diagram illustrating a member combination of combination type 1;

FIG. 17 is an explanatory view illustrating a member combination of combination type 2;

FIG. 18 is an explanatory diagram illustrating a member combination of combination type 3;

FIG. 19 is an explanatory diagram illustrating members arranged in an empty area.

FIG. 20 is a plan view of a base material when members are arranged in pairs according to the combination type.

FIG. 21 is a plan view of a base material when a member is arranged in an empty area.

FIG. 22 is a plan view of a base material in a case where members are arranged in pairs and members are arranged in empty areas according to the combination type.

FIG. 23 is a plane view of a base material when members are arranged by a conventional layout method.

[Explanation of symbols]

 P: Member, M: Base material.

Claims (5)

[Claims] 1. A member layout method for forming a plurality of members from a raw plate material by NC fusing, comprising: a data capturing step of capturing a plurality of member shape data; A step for creating a surplus shape for creating a surplus shape for use, a fusing shape line determining step for determining a fusing shape line based on the created surplus shape, and a fusing allowance for adding a fusing allowance to the determined fusing shape line An additional process, a layout process of arranging each member so that an empty area between the members is minimized, and a fusing route data creating process of creating fusing route data based on the layout of each member. A member layout method in NC fusing. 2. In the layout step, a member having an arbitrary shape or a similar shape is detected from a plurality of members to be NC-fused, and the members having the arbitrary shape or a similar shape are arranged as a pair to arrange each member. The method for laying out members in NC fusing according to claim 1, wherein: 3. The NC according to claim 2, wherein in the layout step, a combination type of each member is obtained, and a paired member is detected for each combination type.
Layout method of members in fusing. 4. The layout step according to claim 1, wherein in the layout step, an empty area between the arranged members is detected, and the members are arranged in the empty area. Layout method of members in NC fusing. 5. The layout step according to claim 1, wherein in the layout step, the arranged members are moved in the X and Y directions to reduce the empty area between the members. Layout method of members in NC fusing.