JPH0431150B2 - - Google Patents

Description

[Detailed Description of the Invention] [Table of Contents] Overview Industrial Application Fields Conventional Technology Problems to be Solved by the Invention Means for Solving the Problems Embodiment Figure 1...Principle block diagram of the present invention , FIG. 2...Block diagram of an embodiment of the present invention, FIGS. 3 to 20...Explanatory diagram, FIG. 21...Segment data structure, FIGS. 22 to 25...Explanatory diagram, FIG. 26... Structure of grouping unit information, Figure 27...Explanatory diagram, Figure 28...Detailed explanatory diagram of piece design, Figure 29...Explanatory diagram for determining dividing points, Figure 30...Dividing point calculation module, Effects of the invention [Summary] Based on the product diagram of the product to be manufactured by the progressive mold to be designed, processing information regarding unit processing at the stage of the mold is input, and in an information processing system that designs at least the die and punch. , is equipped with a basic design department, a detailed design department, and a production design department, the basic design department forms profile data related to the processing of the above units, and the detailed design department groups the profile data and then processes the above die. It is disclosed that a progressive die is designed based on the given information by configuring a piece and block design for the punch and the punch.

[Industrial application field]

The present invention provides a mold design processing method, in particular, a detailed design of at least a die and a punch of a progressive mold, based on a product drawing of a product to be manufactured by the progressive mold to be designed. This paper relates to a mold design processing method.

[Conventional technology]

In conventional information processing systems related to progressive mold design, (i) designers use graphics and
The CAD method involves drafting on the screen while interacting with the display, and (ii) the systematic standardization of mold structure, units, parts, etc., and this standard is stored as a data file, and designers selects the type of unit, etc., specifies the location on the X-Y coordinates, and calculates the dimensions in the Z direction, etc.
CAD method, etc. are known.

[Problem that the invention seeks to solve]

However, when using the above-mentioned conventional system, it is difficult to match each other between parts.
Design errors are likely to occur. Particularly when designing a progressive mold, it is important to match each component.

In place of the conventional system described above, the present invention inputs the geometry related to the processing of units on the mold stage based on the product drawing, and operates the strip layout while interacting on a graphic display, for example. In subsequent processing, the purpose is to perform grouping so that pieces and blocks can be designed at least for dies and punches.

[Means for solving problems]

FIG. 1 shows a block diagram of the principle of the present invention. Reference numeral 1 in the figure is a conceptual design department, which checks machinability etc. based on a given product drawing.

2 is the basic design department, where processing information including the geometrical shape for unit processing at the mold stage is input based on the product drawing.
Segment data 8-1, 8-2 for each part,
8-3,... and 9-1, 9-2, 9-3,... are held in a chain structure, a strip layout design is performed based on the profile data, and the layout drawing 5 is output, and the necessary In response to the,
Make changes and corrections interactively.

3 is a detailed design department which groups one or more machining geometric shapes to be machined in a common machining stage based on the layout situation shown in the layout drawing 5, and ID part 10 regarding grouping unit
Grouping unit information consisting of and data section 11 is generated. In the grouping unit information, the profile data 8, 9, etc. related to the individual processing geometry are pointed to by the core pointer IPi. In the detailed design section 3, further based on the grouping unit information, at least:
It has a die assembly diagram design function 12 that designs the cutting pieces and blocks related to the die, a punch assembly diagram design function 13 that designs the pieces and blocks related to the punch, and furthermore, it has the division diagram design function 13 that designs the pieces and blocks related to the punch, and furthermore, it has the division diagram design function 13 that designs the pieces and blocks related to the punch. It has a stripper assembly drawing design function 14 for designing pieces and blocks. Each of these assembly drawings is output in a form such as the plate assembly drawing 6.

4 is a production design department, which generates parts drawings and detailed drawings for each part of the die, punch, and stripper that are being designed as described above, and outputs them as parts drawings 7.

[Effect]

When segment data including contour (arc, straight line, etc.) information and coordinate values of a machining geometric shape is input to the basic design section 2, the segment data has pointers PN1 and PN2.
They are chained together and managed based on the core pointer IPi for each particular machining geometry.

In the layout design function in the basic design department 2, a layout design is performed based on a given product drawing to decide which part to process in which step among multiple processing steps, and the result is a layout drawing 5, etc. is output as The designer looks at the layout drawing 5 and makes changes and corrections interactively, for example, on a graphic display.

In the detailed design section 3, based on the result of the layout design, the processing geometrical shapes to be punched in one die, for example, are grouped and grouped unit information 10, 11 is created. Collect information about one or more machining geometries. Then, in the detailed design department 3, based on the grouping unit information 10 and 11, the design of the die and the punch corresponding to each of the above-mentioned processing steps is started, and if necessary, the design of the stripper is started. going into.

The production design department 4 creates and outputs each part diagram and detailed diagram, or creates data for NC processing.

〔Example〕

FIGS. 2A and 2B, taken together to form a single figure, show a block diagram of one embodiment of the present invention. Numbers 1 to 4 and 12 to 1 in the figure
4 correspond to FIG. 1, respectively.

The product drawing in the conceptual design department 1 is as illustrated in FIG.
FIG. 3 is a diagram showing an IC lead frame.

The explanation will be continued below, taking as an example a mold design for manufacturing a product using a block division type progressive mold. In addition, in the drawings below, the blacked out areas in Figures 3, 19, and 20 originally contain numerical values, but are not directly related to the content of the present invention. , and is the result of coloring out the corresponding value.

When inputting the product shape in the basic design department 2, the shape of, for example, an IC lead frame 15 (processed geometry according to the present invention) is input as shown in FIG. The processed geometry represented by the IC lead frame 15 is composed of multiple line segments (each line segment is called a segment), and the coordinate value of the end point of one line segment is the coordinate value of the start point of the next line segment. Match. One segment data is created corresponding to this one line segment, and the segment data is
Contains the starting and ending coordinates of a line segment, as well as pointers to the segment data located immediately before and after. If the line segment is an arc, it also contains the coordinate values of the center of the arc. A collection of segment data chained in this way is called profile data. In reality, for objects that have a symmetrical shape, for example, 1/
4 is defined, and for the remaining 3/4, the product shape is input by interactive copying, inversion, rotation, movement, etc. as shown in FIG. As a result, information such as profile data 8 and 9 shown in FIG. 1 is accumulated. This will be described later (FIGS. 21 to 27).

In the layout design in the basic design department 2, based on the figure 18 obtained as shown in FIG. 6, a plurality of processing steps (processing The layout of the cutting blade shape on the stage is created to determine which location (partial part) to punch out on the stage. 19, 20, 21, . . . in the figure represent the cutting edge shapes on each stage. FIG. 8 shows a completed layout design diagram 5-1 showing the cutting edge shapes distributed to each stage as described above. Further, FIG. 9 shows a strip layout drawing 5-2 showing a state in which punching is performed according to the shape of the cutting blade on each of the stages.

In the die plate split piece design in the detailed design department 3, as shown in Fig. 10, the cutting edge shape on the same stage (which can be considered to be the same as the machining geometry)
22, 23, 24, 25...
, and specify a dividing line 26 to make each piece into a split piece. As a result, grouping unit information 10, 11 shown in FIG. 1 is formed, and data necessary for processing each piece 22, etc. is compiled on this information. When the split pieces on the die plate are designed as shown in FIG. 10, the spacers 27 to be interposed between the split pieces 22, etc. are also designed as shown in FIG. 11.

In the die plate block design in the detailed design department 3, as shown in FIG.
The block 28 is designed so as to enclose the die assembly 29, and the die assembly diagram 29 is completed.

When designing the stripper plate in the detailed design department 3, the stripper plate split piece 30 is automatically designed based on the information in the die assembly drawing 29 as shown in FIG.
Where to place 1 (A...Top, B...Bottom, R
...right, L...left), etc. is determined.

Stripper plate in detailed design department 3
When designing the block, as shown in Figure 14,
Create a stripper plate block 32 so as to wrap around each stripper plate split piece 30, input a guide line 33, and assemble the stripper plate 3.
4 is completed.

In the punch plate piece design in the detailed design department 3, the shape of each cutting edge on each processing stage is specified, and one punch piece 35 is designed as shown in FIG. Also at this time, stopper 31
The location of etc. is also input and instructed. Furthermore, the 16th
A punch spacer 36 is also designed as shown in the figure.

In designing the punch plate block in the detailed design department 3, the dividing line 37 for dividing the block is input based on the arrangement of the punch pieces 35, and the punch block 38 is designed as shown in FIG.
is obtained, and the punch assembly diagram 39 is completed.

When outputting drawings in the production design department 4, a design drawing 40 and detailed drawings 41 for each split piece part are output as shown in FIG. Further, as shown in FIG. 19, a design drawing 42 of the die block part is output. Additionally, for example, a second
It is also possible to output each component diagram 43 in the form shown in Figure 0.

When creating NC data in the production design department 4, although not shown, data necessary for performing NC processing is automatically created based on the shape of the cutting edge and the like.

Each segment data 8-1, 8 shown in Figure 1
-2, . . . each have a data format as shown in FIG. The name of the segment is entered in "NAME" at illustrated address #1. “CDE” at address #2 contains the second
The type of outline is described using a code as shown in Figure 2, and in the case of a segment related to a dimension line, a code "1" is entered. That is, for example, if the segment is an arc, code "4" is written at address #2. "DR" at address #3 contains the 23rd address when the segment is an arc.
The direction of the arc is described using a code as shown in the figure. Also, "CR" in address #3 is
A code regarding the color of the pen is entered as necessary.

In "KL" at address #4, the type of line representing the segment is described with a code as shown in FIG. "PN1" and "PN2" at address #5 are pointers between segment data as shown in Figure 1, and the value "0" is written as the pointer "PN1" for the first segment, and the value "0" is written as the pointer "PN1" for the first segment. A value "-1" is written as a pointer "PN2" for the segment.

At addresses #6 to #14, the 25th
As shown in the figure, the information shown in Figure 25 is described depending on whether each segment is a point, a straight line, a character, or processing information. For example, if the segment is an arc, the radius R is written in address #6, and addresses #9 and #1
0 describes the coordinates of the center point of the arc, addresses #11 and #12 describe the coordinates of the starting point of the arc, and addresses #13 and #14 describe the coordinates of the end point of the arc.

Needless to say, the segment data 8-1, 8-2, having the format as shown in FIG.
... are chained together to give information about one part.

26A and 26B show the format of the grouping unit information. Information 11 indicates the data section and shows the illustrated profile data (PROFILE
DATA), it can be seen that in the illustrated case three pieces of profile data are pointed to. That is, it is indicated that the three parts pointed to by pointers IP1, IP2, and IP3 are grouped into one.

Clearance data (CLEARANCE)
DATA) gives the clearance when a cutting edge shape is given, for example, and describes data regarding this clearance. CRACK POINTERS is, for example, the 10th
Position data of the dividing line 26 on the dividing piece 22 shown in the figure is described. Furthermore, in the stopper position (STOPPER POSITION), the position data of the stopper 31 described in connection with FIG. 13, for example, is described.

Also, material data (MATERIAL
In DATA), pieces are grouped together to form one piece, and in this case, the lower left coordinate values PX, PY of the piece, and the width A, length B, and height H of the piece are described.

The information 10 shown in FIG. 26 corresponds to the information 11.
Indicates the ID part, and indicates that TYPE1 "100" is the ID part related to the above profile data,
I ₁ and J ₁ indicate how many words of profile data exist in the information 11, with each word consisting of 4 bytes. In addition, TYPE 2 "101" indicates that it is the ID part related to the above clearance data,
I ₂ and J ₂ indicate how many words of clearance data exist in the information 11. below,
The same applies to TYPE 3 "102" and the like.

The grouping unit information shown in FIG. 26 is related to the die, but if the die performs not only punching but also "bending", for example, " Bending data such as "106" will be added to the information 11 shown in FIG. For example, ID
The bending data in section "106" specifies the bending angle and bending radius.

28A and 28B, which together constitute one drawing, show detailed explanatory diagrams of the piece design.

The piece design process shown in FIG. 28 corresponds in detail to the die plate split piece design and die plate block design shown in FIG. The state of grouping as grouping unit information 10 and 11 shown in FIG. 1 corresponds to the group instruction shown in FIG. 28. At this time, a flag (X mark) for grouping the parts to be grouped on one piece as shown in 45C is attached to each part.

In this state, the direction of the dividing line 26 (FIG. 10) is specified by the dividing direction instructions X, Y, S 46.

Under this state, automatic generation processing is entered, and the offset figure creation module 47A is activated to create an offset figure 47 that takes a clearance amount for each part as shown in figure 47B. The division point calculation module 48A then operates to determine division points as shown at 48B and 48C.

Next, the grouping module 49A operates, as shown in the figure 49C, to create a minor line for preparing dividing lines for the parts to be grouped into one piece.
Grouping is performed. Then, the dividing point connection module 50A works, as shown in the diagram 50C.
A dividing line for the wari pieces is created by connecting the dividing points between the minor grouped parts.

Next, the existence area calculation module 51A operates to check the existence area of a plurality of parts to be combined into one piece, as shown in the diagram 51C. and,
When the fleshing processing module 52A works, as shown in FIG.
As shown in 2C, the external shape of the existing area is determined, and the thickness in the Z direction is determined.

Next, the dividing figure creation module 53A operates to provide dividing lines for creating dividing pieces as shown in 53C and 53D. Then, the parts diagram creation module 54A operates to output a parts diagram corresponding to one piece as shown in 54C and 54D.

FIG. 29 is an explanatory diagram illustrating how dividing points are determined when a dividing direction vector S is specified for one part.

Now, for the part 21 as shown in FIG. 29A,
Assuming that the X, Y coordinates and the dividing direction vector S are specified, the direction of the part 21 is normalized so that the direction of the vector S matches the X coordinate as shown in FIG. 29B, and As shown, part 21
A dividing point is determined for . And the 29th
As shown in Figure D, a dividing line 26 is provided.

Regarding the determination of the division points shown in FIG. 29C, the division point calculation module 48A shown in FIGS. 30A and 30B is in operation.

30A and 30B together constitute one drawing, and the dividing point calculation module 48A is roughly divided into 48A1 to 48A.
It is divided into 5 processes. In addition, the illustration process 48A1
and 48A2 correspond to the processes shown in FIGS. 29A and 29B. Further, illustrated processes 48A3 and 48A4 correspond to the process shown in FIG. 29C.

In the process 48A3, for the component 21 whose direction has been normalized as shown in FIG. 29B, for example,
The segment with the largest coordinate value in the axial direction is found. This segment corresponds to segment SA shown in FIG. 29C. It is checked whether the segment SA is an arc, and the segment
In the case of SA, process 48A312, process 48A
3121, the dividing point is determined at the center of the line segment.

Similarly, in process 48A4, a segment with the minimum coordinate value in the X-axis direction is found for component 21. This segment corresponds to segment SB shown in FIG. 29C. It is checked whether the segment SB is an arc. In the case of segment SB, a straight line is drawn from the center of the arc in the -X direction in step 48A411, and the presence or absence of an intersection between segment SB, which is a circular arc, and the straight line is checked. In the case of segment SB, the above-mentioned intersection exists, and the division point is determined to be the intersection by process 48A4111. For example, if the arc segment and other straight line segments are
If there is contact at the minimum coordinate point, there may be a case where no intersection exists in process 48A411. In this case, the dividing point may be set to the smaller X coordinate value of the starting point coordinates and ending point coordinates of the arc segment (processing 4).
8A41112).

〔Effect of the invention〕

As explained above, according to the present invention, the design processing after the strip layout is sped up, so to speak, and it becomes possible to design a mold with excellent consistency between each component.

[Brief explanation of drawings]

Figure 1 is a block diagram of the principle of the present invention, Figure 2A,
B is a block diagram of one embodiment of the present invention, FIGS. 3 to 20 are explanatory diagrams for explaining the block diagram shown in FIG. 2, respectively, FIG. 21 is a format of segment data, and FIGS. 22 to 25 The figures are explanatory diagrams for explaining segment data, and
Figure 6 shows the format of grouping unit information, the second
Fig. 7 is an explanatory diagram for explaining grouping unit information, Fig. 28 A and B are detailed explanatory diagrams of piece design, and Fig. 28 is an explanatory diagram for explaining grouping unit information.
FIG. 9 is an explanatory diagram of dividing point determination, and FIGS. 30A and 30B are explanatory diagrams of a dividing point calculation module. In the figure, 1 is the conceptual design department, 2 is the basic design department, 3 is the detailed design department, 4 is the production design department, 8-1, 8-2,
...and 9-1, 9-2, ... are segment data, respectively, 8, 9 are profile data, 10, 1, respectively.
1 is grouping unit information, 48A is a division point calculation module, 50A is a division point connection module, 51
52A represents an existence area calculation module, 52A represents a fleshing processing module, and 53A represents a divided figure creation module.

Claims (1)

[Claims] 1. Processing information including information corresponding to the processing geometry of the unit at the stage of the mold is input based on a product diagram of a product to be manufactured by the progressive mold to be designed, In an information processing system that performs at least a piece and block design for a die and a piece and block design for a punch, a basic design section 2 receives the processing information, performs layout design, and outputs a layout drawing.
and a detailed design department 3, which performs at least the split piece and block design for the die and the piece and block design for the punch based on the layout designed in the basic design department 2; and in the detailed design department 3. Based on the obtained die assembly diagram and punch assembly diagram, the basic design division 2 is equipped with a production design department 4 that outputs a parts drawing 7 including a part diagram of each part of the part and deals with production design; Based on the processed processing information, segment data 8-1, 8-2, 8-3, ..., 9-1, 9- including contour information and coordinate values for segments of each part of the processed geometric shape are generated.
2, 9-3, ..., and generates profile data 8, 9 that is held after the segment data is chained, and the detailed design unit 3 is configured to・Has a function to generate grouping unit information 10 and 11 that has a pointer for grouping data 8 and 9 and holds information about the grouped unit, and the grouping unit information 1
0 and 11, and is configured to perform split piece and block design for the die and piece and block design for the punch, and in designing the split piece and block for the die, at least a split point calculation module is used. 4
8A, a dividing point connection module 50A that collects a plurality of parts, an existence area calculation module 51A that examines the existence area of a grouping unit, a fleshing processing module 52A that performs fleshing out based on the existence area, and a grouping unit. A mold design processing method comprising a divided figure creation module 53A for creating divided figures for pieces corresponding to the pieces, and processing by at least each module is executed.