JPS6235913A - Cross section drawing method - Google Patents

Abstract

PURPOSE:To simultaneously draw cross section of desired parts without overlapping one another by indicating a hole, whose cross section should by drawn, out of many holes on the plan of a metallic die plate and indicating the display position. CONSTITUTION:A plan PLV of the metallic die plate is drawn on a display picture CRT, and the hole whose cross section should be displayed is pointed by a cursor if it exists. When the hole is specified, an operator discriminates whether it is necessary to change the cross section display position or not, and the operator inputs NL if it is unnecessary to change the display position like holes H1 and H2. If it is necessary to change the display position line a hole H3, the cursor CSR is positioned to a prescribed position in the horizontal direction, namely, the position where the cross section should be displayed, and this position is inputted. When NL or the cross section display position is inputted, a processor drawing simultaneously cross sections H'1-H'3 of holes H1, H2, and H3 in the indicated position on the display picture CRT without overlapping one another.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a cross-sectional diagram drawing method, and particularly to a cross-sectional diagram drawing method that can draw a cross-sectional view of a hole formed in a mold plate by moving it to an arbitrary position. Regarding the method.

<Prior Art> In a progressive die, punches are arranged at every predetermined stroke, and punches are performed by the punches of each stage as the plate material is progressively fed, and a desired part is obtained from the final stage.

Such a progressive die is composed of several punches and a plurality of plates. FIG. 5 is an explanatory diagram of the progressive die, including an upper die set 1, an upper backing plate 2, a punch plate 3, a stripper plate 4, a die plate 5,
It has a lower backing plate 6 and a lower die set 7, and the punch plate 3 has several punches PI having a predetermined cross section.
, P2, P3... are fixed, and the stripper plate 4, die plate 5, lower backing plate 6, and lower die set 7 facing the punch are provided with hollow holes H1 of the same shape.
~H3 is provided. Note that the hollow holes formed in the stripper plate 4 are large enough to allow the punch to pass through, and the other hollow holes are for receiving the punch during punching and allowing the punched plate material to fall downward.

Each plate has bolt insertion holes B11 and B12.
..., B21. B22...1B31゜B32...
iB41. B42...; Dowel pin insertion hole Dl
l, D12. ..., D21°D22...i D
31. D32...1D41°D42...; Bolt insertion holes HBI, HB2..., lifter bin insertion holes LPI, LP-2... are provided as appropriate. The bolts are used to fix adjacent plates, and the dowel pins are used to prevent misalignment between the plates even when the bolts are tightened. The suspension bolt is attached to a urethane spring and suspends the stripper plate 4 with elasticity, and it contracts during punching and expands as the punch plate 3 rises after punching is completed, pushing down the plate material 8 and causing the plate material to rise together with the punch plate 3. The lifter pins are used to hold the plate material 8 at a predetermined height above the surface of the die plate 5.

As can be understood from the above configuration, during the production of a progressive die, (a) each punch (tool) Pi, P2. In addition to determining the shape of P3 and creating NC data for punching, it is also necessary to create NC data for punching (designing and molding a plate with various holes).

By the way, in order to create the NC data for hole machining in (b), it is necessary to input the hole position in each plate and the machining conditions for the hole. Note that the machining conditions indicate what kind of tool (type and diameter of the tool) and what depth of machining is to be performed. For the sake of Party B, (1) first register the first correspondence between various plate holes formed in each plate and the processing conditions of the plate holes, and (2) create holes spanning two or more plates or one When each hole formed in only one plate is called a machined hole (a machined hole is a group of plate holes), a second correspondence relationship between the machined hole and the plate hole is registered, and (3) Machining The holes to be formed in each plate of the mold plate are specified by inputting six people and the position of the hole to be machined.

FIG. 6 is an explanatory diagram of the first and second correspondence relationships.

Now, the name of the machined hole is Hl, and each plate PLa -
The plate hole names of P L c are α, β, and γ, and the plate hole a is drilled to a depth of Dll with a tool of diameter A, and then drilled to a depth of Dll with a tool of diameter B1. Then, the depth is increased with the tool of the successor C1, countersunk machining of 3 is performed, and finally the depth is increased with the tool of diameter E1 to the depth D1.
4, and the plate hole β is obtained by performing center milling to a depth of D21 with a tool of diameter A2, and then drilling to a depth of D22 with a tool of diameter B2, Furthermore, the plate hole γ is drilled to a depth of D3□ with a tool of diameter A3, then drilled to a depth of D32 with a tool of diameter B3, and finally tapped to a depth of D33 with a tool of diameter E3. The first correspondence is α, center mini tool, diameter A1, depth D11 drilling tool, diameter B1, depth D12 countersunk counterbore machining diameter C1, depth Dl 3 taps Vertical tool, diameter E1, depth D14 β, center mini tool, diameter A2, depth D2゜Drilling, diameter B2, depth D22 γ, center mini tool, diameter A3, depth D□Drilling tool, diameter B3, depth D32 tapping tool, diameter E3, depth D33, and the second correspondence is Hl, al β, n;

Now, once the hole position and hole machining conditions are specified, the plan view of the specified plate or the plan views of all plates can be superimposed and drawn on the display screen, or drafted, or output by other methods. It is now possible to do so. By drawing this plan view, it is possible to check to a considerable extent whether the hole positions and hole machining conditions have been input correctly.

However, when only drawing a plan view, it is not possible to check for interference between parts (hole shapes) that do not appear in the plan view.

For this reason, the applicant has proposed a method of drawing a cross-sectional view on the same day, in which a cross-sectional view of the plate is drawn in addition to the plan view, so that parts that do not appear in the plan view can be checked for hole interference. .

<Problems to be Solved by the Invention> As described above, by drawing a cross-sectional view in addition to a plan view, it is possible to thoroughly check for interference between parts (hole shapes).

By the way, one part (hole shape) is different from another part (hole shape).
If there is interference, it is necessary to check in detail what kind of cross-sectional shape the interfering part has. However, with the method of simply drawing cross-sectional views, there is a problem that the cross-sectional views of each component overlap, making it impossible to grasp the cross-sectional shape of each individual component.

In addition, there are cases where it is desired to create a cross-sectional view of each part in order to check what parts (hole shapes) are used in the mold plate. In such a case, if the cross-sectional view is concentrated in a certain area, it will be very difficult to see.

In particular, two hole coordinate values in the horizontal axis direction (X-axis direction) are approximately equal.
If it is desired to draw the above cross-sectional views of the holes at the same time, the cross-sectional views of the holes overlap, making it impossible to recognize the cross-sectional shapes of the individual holes.

From the above, it is an object of the present invention to make cross-sectional views of desired parts so that they do not overlap (or in other words, separate) even when parts (hole shapes) interfere with each other or when parts (hole shapes) are crowded together. and B, which provides a method for drawing cross-sectional views that can be drawn at the same time.

<Means for Solving the Problems> FIG. 1 is a block diagram of a CAD system for a progressive press die that implements the cross-sectional view drawing method of the present invention.

11a is the program C1 processor, llb is the ROM, lie is the RA
M, 12 is a graphic display device, 13 is a tablet, 14a, 14b, etc. are input/output devices such as a keyboard, an X-Y plotter, etc., 15 is various data files for progressive die design and automatically created NC A large-capacity storage device that stores information, etc.

CRT is a display screen, PLv is a plan view of the mold plate, HI, H2, H3... are parts (hole shapes), Sv is a cross-sectional view, H1' to H3' are holes H, ~H, (7) a cross-sectional view ,
C8R is a cursor.

The present invention includes a step of drawing a plan view PLV of a mold plate on a display screen CRT, a step of drawing a cross-sectional view of a large number of holes on the plan view and indicating a small hole (for example, H3), and The method includes a step of specifying a position where a cross-sectional view H3' of the hole H3 is to be displayed, and a step of displaying the specified cross-sectional view H3' of the hole H3 at the designated position.

If the cross-sectional views of each hole overlap when drawn using the normal method, if the drawing position of the cross-sectional view can be moved, the individual cross-sectional views can be separated from each other, making it possible to accurately recognize the cross-sectional shape of each part (hole shape). be able to.

Therefore, in the present invention, the plan view PLV of the mold plate
is drawn on the display screen CRT, and a hole (for example, H3) whose cross-sectional view is not drawn among the many holes on the plan view
is indicated with the cursor C8R, and the position where the sectional view H3' is to be displayed is similarly indicated with the cursor C8R, so that the sectional view H,/ of the identified hole H3 is displayed at the indicated position. There is.

<Embodiment> FIG. 1 is a block diagram of a CAr) system for a progressive press die that realizes the cross-sectional view drawing method of the present invention.

11a is a processor, llb is a ROM, lie is a RAM
A system program is stored in advance in this RAM. 12 is a graphic display device, 1
3 is a tablet, 14a.

14b... is an input/output device such as a keyboard, an X-Y plotter, etc., and 15 is a large capacity storage device such as a floppy disk that stores various data files for progressive die design, automatically created NG information, etc. be.

In addition, CRT is a display screen, PLV is a plan view of a mold plate, H4, H2, H3... are parts (hole shape), S
■ is a cross-sectional view, H1' to H3' are cross-sectional views of holes H1 to H, C
8R is a cursor.

A menu table 13b is pasted on the tablet surface 13a, and various items and data can be input by picking predetermined items written on the menu table with the cursor 13c. FIG. 2 is a schematic overall view of the menu table, including a product shape (final part shape) input section T1, blank layout section T2, strip layout section T3, mold concept section T4, and processing data output section T.
5. Drawing output section T6, list output section T7, various data setting section T8, drafting processing section T9, alphabet/symbol input section T10, numerical/type shape input section T11, shape registration section T1
2.Parts menu part T13,List menu part T14,
Part of the drawing menu T15 etc. are provided.

The cross-sectional drawing method according to the present invention will be explained below with reference to the flowchart in FIG. 3 and the drawn image in FIG. 4. Note that the first correspondence between each plate hole and its machining conditions, the second correspondence between the machined hole and the plate hole, and the position of each machined hole have already been specified in the mold planning process and stored in the RAM 11c. It is assumed that there is

(1) Cross-sectional view of menu table 13b (see Figure 2)
4a with the cursor 13c, the image shown in FIG. 4(A) is drawn on the display screen CRT of the graphic display device 12.

The image shown in FIG. 4(A) is an image that prompts the user to input the plate number.

(2) Next, input the number (name) of the plate you want to draw. If you want to see the cross-sectional view of all plates, click °
Enter 'ALL'.

(3) Whether “ALL” has been input to processor lla,
Or check if a plate number has been entered.

(If 41 "A L L" is input, 11 plane views PLV of all plates are superimposed and drawn on the display screen CRT (see Figure 4 (B)). Also, a cross-sectional view is drawn at the bottom of the display screen. Draw the question sentence "Anna~ (NL: Menu)" asking about the hole you want to draw.

(5) On the other hand, if a plate number has been input, only the plan view of the plate indicated by the plate number is drawn. In addition, a question text "Anna (NL: Menu)" asking about the hole whose cross-sectional view is to be drawn is drawn at the bottom of the display screen.

It is assumed that "ALL" is input.

(6) Now, if there is a hole for which a cross-sectional view is to be drawn, point the hole on the plan view PLV with the cursor 13c.

Moreover, when it is desired to proceed to another process other than the cross-sectional view creation process, a numeric line (see the numerical value/mold shape input section Tll in FIG. 2) is input to NL. The method for pointing the hole using the cursor 13c is as follows.

That is, when the cursor 13c is moved on the tablet surface 13a, the cursor C8R (see FIG. 4(B)) on the display screen C and RT moves in accordance with the movement. Position the cursor 13c nearby and press the switch of the cursor 13c.

Processor lla therefore checks whether a hole has been indicated.

(7) If not instructed, check whether NL is input and t. If NL is not input, the process from step (6) onwards is repeated.

(8) On the other hand, if a hole (referred to as H) is specified, the processor lla displays a question text [Anaichi = (NL: Sonomama)] that asks about the cross-sectional view display position of the hole H1 at the bottom of the display screen ( (See Figure 4(C)).

(9) The operator determines whether it is necessary to change the cross-sectional view display position. Note that the display position of the cross-sectional view can be moved in the horizontal direction (X-axis direction).

(Field) Now, if there is no need to change, enter NL.

(11) On the other hand, if it is necessary to make a change, position the cursor C3R at a predetermined position in the horizontal direction, in other words, at the position where you want the cross-sectional view to be displayed, and input the position.

It is assumed that the cross-sectional view display position of the hole H1 is not moved (NL is input).

(If Ifi N L is input or the sectional view display position is input with the cursor, processor lla displays the sectional view of the hole at the designated position (see FIG. 4(D)).

In other words, if NL is input, the X coordinate value of the hole is not changed, and if the cross-sectional view display position is input, the X coordinate value of the input position is used as the X coordinate value of the hole. Show cross section. Note that the cross-sectional view of the hole is drawn with reference to the processing conditions of the plate hole constituting the hole (processed hole).

In addition, along with the cross-sectional diagram of the specified hole, the question text "Anna =
(NL: Menu)" is displayed.

Thereafter, the processes from step (6) onwards are performed, and cross-sectional views of all desired parts (hole shapes) can be drawn on the display screen simultaneously and without overlapping each other.

Note that in the second cycle, (il cursor C8
Indicate the hole H with R (see Figure 4 (D)), and (
ii) By inputting that the cross-sectional drawing drawing position will not be changed (see Fig. 4 (E)), the cross-sectional views H, /, H' of the two holes H11H2 are simultaneously drawn as shown in Fig. 4 (F). It can be drawn on the display screen CRT.

Also, in the third cycle (it cursor C8
Indicate hole H3 with R (see Figure 4 (F)),
(ii) By specifying the cross-sectional view drawing position with the cursor C8R (see Figure 4 (G)), cross-sectional views H, /, H2 of the three holes H1, H2, H3 as shown in the fourth ()
/ and H3/ can be simultaneously drawn on the display screen CRT without overlapping.

(1) When the process of drawing the cross-sectional view of the desired gold hole is completed, the operator inputs NL while the question text for the hole is displayed on the display screen CRT. Party B who executes the processing can do so.

In addition, use the cursor 13c to start "1 drawing data output" T6a, and press the function key F7 on the keyboard 14a.
When turned on, the cross-sectional view data is output to the mass storage device 15. Also, select "Drawing" with cursor 13c T 6 b
When the user turns on the function key FIO on the keyboard 14a, a cross-sectional view is drawn by the X-Y plotter 14b.

<Effects of the Invention> According to the present invention, a plan view of a mold plate is drawn on a display screen, a hole for which a cross-sectional view is to be drawn is specified among a large number of holes on the plan view, and the cross-sectional view is Since the configuration is configured to specify a position to draw and draw a cross-sectional view of the identified hole at the specified position, even if parts (hole shapes) interfere or parts (hole shapes) Even if the cross-sections of the desired parts are closely spaced, they can be drawn simultaneously without overlapping each other, or in other words, separately.
It is possible to accurately recognize the structure of individual parts.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a CAD system that implements the present invention, Fig. 2 is a schematic overall view of a menu table, Fig. 3 is a flowchart of a cross-sectional diagram drawing method according to the present invention, and Fig. 4 is a cross-sectional diagram drawing process. An example of image drawing for each step, FIG. 5 is an explanatory diagram of a progressive die, and FIG. 6 is an explanatory diagram of a method for specifying hole positions and processing conditions in a mold plate. 11a...Processor, 12...Graphic display device, 13...Tablet, 14a...Keyboard, 14b...X-Y plotter, CRT...Display screen, PLV...Front view of mold plate, SV...Cross section Figure, H-H...Hole, H'~H'...Cross-sectional view of hole, C8R...Cursor Patent applicant Fanuc Co., Ltd. Agent Patent attorney Chiki Saito ->) ``, V) + d

Claims (2)

[Claims] (1) In the method for drawing a cross-sectional view of a hole formed in a mold plate, a plan view of the mold plate is drawn on a display screen, and a hole for which a cross-sectional view is to be drawn among the many holes on the plan view is specified. A method for drawing a cross-sectional view, comprising: specifying a position where the cross-sectional view is to be drawn, and drawing the cross-sectional view of the specified hole at the designated position. (2) The cross-sectional diagram drawing method according to claim (1), wherein the position is a horizontal position of a display screen.