JP2696884B2 - Parts machining drawing information creation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention creates information necessary for creating a part machining drawing in a mechanical design drafting system (hereinafter, referred to as a CAD system) using a computer. To a device that

[Conventional technology]

In order to create a new part processing drawing, first create a manuscript of the part processing drawing of the part from the so-called punch picture or assembly drawing around the mechanism by freehand, and consult the widely used CAD system while watching it. Using the pattern drawing function,
The outline is a line segment (solid line bold line), the processing point and the processing size are circles or rectangles, the processing content display is characters, the dimension display is lines, arrows, and characters, and the comments and others are characters or lines. I am drawing.

When a similar drawing is created or a drawing is changed, the pixel in the drawing is deleted by the CAD system and rewritten by the above-described method, or the line segment is rewritten using the group function, the limit function, the moving function, or the like. Change the length,
Such operations are repeated or repeated by the number of pixels.

[Problems to be solved by the invention]

In this conventional method, when a new or similar drawing is created or a drawing is changed, it is necessary to give an operation instruction for each pixel using the drawing function of the CAD system, which is extremely monotonous and troublesome, and many simple drawing mistakes occur.

Furthermore, due to the recent trend of connecting data between CAD / CAM systems, in the past, those who passed the mechanical drafting standard that can be visually discriminated were passed as drawings, but even computers have It is necessary to perform drawing in accordance with drawing standards that can be understood and analyzed, and it tends to take more drawing time to enable extraction of machining information than just drawing alone, and thus damage to the improvement of design productivity in CAD systems. , Which was an obstacle to CAD / CAM connection.

Also, in order to avoid the above-mentioned annoyance often,
Drawings are made out-of-scale rather than being drawn to scale. This certainly saves the trouble of drawing, but when checking the drawing later for visual check such as interference, the misunderstanding that the drawing is not drawn on the actual scale, for example, the distance between the processing points is secured to some extent in the illustration Even if it looks like it is done, it flows without noticing the dimension entry mistake, such as the small dimension value is entered differently, etc. After creating the part, the design error is noticed, and it is necessary to remake it again And other factors that cause problems in design quality.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and newly automatically creates a part processing drawing of a designated processing content based on a drawing manuscript drawn freehand.

 Automatically create another diagram of the system with some modifications to the reference diagram.

Rewrite out-of-scale drawings with actual scale drawings.

 Automatically fill in the required dimensions.

Computers automatically create drawings that can be analyzed to extract machining information, and, by linking CAD / CAM systems, create part machining drawing information with the aim of improving productivity from design to manufacturing. The purpose is to do.

[Means for solving the problem]

For this purpose, in the present invention, as shown in FIG. 1, the contents of a drawing file of a similar part processing drawing are analyzed, and an outline display data group, a processing content display data group, a dimension display data group, Each data group is changed (deleted, added) or newly created according to the contents of the part machining drawing creation instruction file by data processing, which will be described later. Editing is performed to automatically create a part machining figure figure file.

[Action]

Means for re-editing the outline display data group on a predetermined basis for each of the stratified data groups according to the contents of the creation instruction file, means for adding / deleting the processing content display data group, and actual scale The processing content display data editing means consisting of the processing point coordinates and the processing content display figure re-editing means, and the data group obtained by the means for generating the correct dimension data after editing and the comment display data group are combined again. Then, it is stored in a predetermined part machining figure graphic file.
This data is displayed on a screen on a CRT display by a display means of a known technique, and the quality of the drawing can be easily checked visually, so that simple design and drafting errors can be prevented.
If a small mistake is found, the information created by this apparatus may be partially corrected and filed on the graphic display screen of the graphic processing apparatus. Subsequent processing is performed by the apparatus proposed by the present applicant in Japanese Patent Application No. 59-252742 (Japanese Patent Application Laid-Open No. 61-131069). By connecting a CAM (Computer Aided Manufacturing) system, it is possible to automatically create developmental part processing drawing information such as the ability to produce and manage parts without drawings.

〔Example〕

Hereinafter, the present invention will be specifically described based on embodiments shown in the drawings.

FIG. 1 shows a conceptual diagram of an embodiment of the present invention. In the figure, 101 is a creation instruction file, 102 is a drawing file, 103
Is a graphic input interface unit, 104 is a part machining drawing figure file creating unit before change, 105 is a part working figure figure file before change, 111 is a figure data layer separate unit, 112 is an outline display data file, and 113 is processing content display data. 114, a dimension display data file, 115, a comment display data file, 121, an external shape data editing unit, 122, a machining content display data editing unit, 123, an edited external shape data file, 124
Is a processing content display data file after editing, 131 is a dimension data editing unit, 132 is an outer shape / machining / dimension data file, 140
Is a symbol figure data file, 141 is an output information synthesizing unit, and 142 is a part processing figure figure file.

<Description of Input Unit> When a situation that requires the creation or change of a part processing drawing occurs, first, a freehand drawing of the corresponding drawing or a redline corrected drawing on a copy of an existing drawing is prepared. Also,
Modification of drawings out of scale on CRT as necessary, for example, change of dimension value for change of processing position, correction of processing content display code for change of processing type and processing size, etc. File with some modifications.

Next, data for an instruction to create a part machining drawing is input and stored in the creation instruction file 101. The input data is roughly as follows depending on the processing content.

(1) When creating a new drawing. In addition, the following () shows an example of data.

Identification number: (NPS6041-141701) b. Processing classification code: (1) c. Scale: (1/4) d. Material and thickness: (SPHC, 2.3) e. Material size: (720 × 280) F. Corner notch dimensions and corner number: (30 × 20,1
234) g. Bending pattern code, bending dimension from side, side number:
(AN, 19, UD) h. Processing contents (additional cancellation classification code, origin code, processing point X
−Y dimension, machining type, machining size): (A, O, 300 × 150, MA, 100 × 50) (A, O, 163 × 108, Q) (A, O, 86 × 60, S) (D , O, 100 × 100) (2) To create another figure by changing a similar figure.

A, h, and b process classification codes described above: (2) Identification number of i-referenced part processing drawing (3) When only out-of-scale drawing is copied or dimensions are automatically entered.

A, i, and b processing division codes described above: (3) In each case, there are other input data besides the entry items, but they are omitted for convenience of explanation.

On the other hand, the corresponding drawing in the drawing file 102 is extracted corresponding to the identification number of the reference part machining drawing in the creation instruction file 101, and the graphic data is read through the graphic input interface unit 103 configured by a known technique. The partial machining drawing graphic file creating unit 104 before the change converts the data into geometrical graphic data and character graphic data again to be part machining drawing information.
E, LINE, multi-point LINE, circle, rectangle, arrow, etc.
Store it in 105.

<Description of Output Data> FIG. 2 is a partial display diagram of an embodiment in which the output information file, that is, the data of the part machining drawing graphic file 142 of FIG. 1 is output by a known drawing output device. 200 is a code indicating the machining origin of the part, 211 is the outline, 212 is the size of the material, 213 is the corner cutout display symbol, 211 to
213 are collectively referred to as an external shape data group 210. 221A, 221
B shows the processing point position, processing type and size, 222A, 222B
Is a code indicating the processing content. The 221A and 221B or 222A and 222B are each treated as a pair of data,
This is referred to as a processing content display data group 220A or 220B. 223B indicates the number of corresponding processes for the specific process content code. 231A is a dimension auxiliary line, 232A is a dimension line, and an arrow and a starting position are connected by a line segment, and 233A is a dimension numerical value. 231A, 232A,
233A is treated as one set and is referred to as a dimension display data group 230A. 230B to 230D show the same contents. 241 is data indicating the material and material thickness, 242 is a display scale of the drawing, 243 is a bending pattern code indicating a bending pattern, 244 is a bending radius specification, 245 is data indicating a surface treatment specification, 246 is Bending code, 247 is a display line segment of the bending position, 248 is a symbol indicating the engraving position of the identification number of the part, combining 241 to 248 and other data not shown, the comment display data group 240 Name. Reference numeral 250 denotes data indicating the identification number of the drawing.

<Explanation of the part processing diagram graphic data layer-by-layer part> The data of the corresponding identification numbers stored in the before-change part processing diagram graphic file 105 are divided into the following four groups.
Sorting is performed according to a predetermined standard described later, and at the same time, the coordinate value of each data is corrected so that the attachment point coordinates of the machining origin code become (0, 0). This is obtained by subtracting the latter value from the former value.

I. External shape display data group consisting of character graphic data indicating the material size of the geometric graphic data indicating the external shape of the part and the position of the corner cutout; b. A processing content display data group in which the geometric figure data indicating the processing point position and the processing type / size and the character graphic data indicating the processing type / size are paired; c. An arrow between the dimension line start position and the machining origin code,
D. Dimension display data group consisting of a set of geometric figure data consisting of line segments indicating dimension auxiliary lines and a group of character figure data indicating dimension numerical values. A comment display data group consisting of geometric figure data and character figure data other than those described above. Next, a stratification method for each data group will be described.

For example, regarding the outline 211 in FIG. 2, among the unit graphic data stored in the pre-change part machining figure graphic file 105, multipoint lines: coordinates (0, Y1), (X1, Y1), ( X
1,0), (X2,0), (X2, Y1), (X3, Y1), (X3, Y2),
(X2, Y2), (X2, Y3), (X1, Y3), (X1, Y2), (0, Y
2) Get the data indicating (0, Y1). In other words, among the multipoint lines, those having the same value at the start point and the end point of the coordinates are defined as the outline data. The material size 212 is the character / graphic data at a specific point (X _mp , Y _mp ) in the drawing, ie, NOTE.
I'll take Further, the symbol 213 indicating the corner notch position takes data having a symbol number of (○). The data is as follows.

NOTE: Coordinates (X _mp , Y _mp ), character code (720 × 280), angle (0) Symbol: Coordinates (X _sn , Y _sn , symbol number (○○○)) It is stored in the outline display data file 112.

Next, with respect to the processing content display data groups 220A and 220B in FIG. 2, circle or rectangle data is extracted from the unit graphic data as the processing content display data. The extracted data is as follows.

Circle: coordinates (x1, y1), radius (r1), line type (S), line size (M) rectangle: coordinates (x2, y2), horizontal length (W2), vertical length (H2) Character / graphic data on the same coordinates as the coordinates of the circle or rectangle data, that is, NOTE, are processed content display codes 222A and 222B.
Are recognized as a pair of data with the circle or rectangle data, and the same machining point display group number is assigned.

NOTE: Coordinates (x1, y1), character code (Q), angle (0) NOTE: Coordinates (x2, y2), character code (MA (100, 50)), angle (0) The number of rectangles is repeated, and for data having a specific processing content code (A to Q), the number of each code is counted, and the result is recognized as the processed number 223B. The above result is stored in the processing content display data file 113.

Next, regarding the dimension display data group 230A in FIG. 2, the arrow data among the unit graphic data is extracted as the dimension line display data 232A.

Arrow: start point coordinates (x _a1s , _ya1s ), end point coordinates (x _a1e , _ya1e ) Also, the direction of the arrow is recognized from the values of the start point coordinates and the end point coordinates of the arrow, and if the direction is up and down, angle (0) The data of the same value as the Y coordinate (y _a1s ) of the starting point coordinates of the arrow and the X coordinate of (x _a1s ± Xα) is extracted from the _{notes of}
Recognize as 3A.

NOTE (233A): LI of coordinates ((x _a1s ± Xα), _ya1s ), character code (280), angle (0), line type is solid line (S) and line size is thin line (L)
From the NE, the same as the Y coordinate (y _a1s of the arrow, X-coordinate of the start point or end point to extract data values of (x _a1s ± Xβ), recognizes that witness line data 231A.

LINE (231A): start point coordinates ((x _a1s ± Xα), _ya1s ), end point coordinates (( _xa1s ± Xβ), _ya1s ), line type (S), line size (L) These 231A to 233A The data is recognized as a set of data, and the same dimension display data set number is assigned. In addition,
At the time of group numbering, attention is paid to the coordinate value and angle of NOTE, and it is common that the value of the character code of NOTE is equal to the X coordinate if the angle is (90), and the Y coordinate if the angle is (0). , Since it is different for out-of-scale diagrams, mark the note data out-of-scale.

The above data recognition is repeated by the number of arrows, and stored in the dimension display data file 114.

When the direction of the arrow is the left-right direction, the determination of the increment value of the X coordinate and the Y coordinate of the code described above is exchanged, and the determination is performed on the Y coordinate of the note having the angle (90).

The data remaining until the end in the above processing is recognized as a note and other comment display data group, and stored in the comment display data file 115.

<Description of Outer Shape Data Editing Unit> Here, a method of editing outer shape data in accordance with the material size and the presence or absence of rectangular corner cutouts will be mainly described.

It should be noted that when the corner cutout is other than a rectangle, it can be edited by a similar method.

The maximum value of each of the X coordinate and the Y coordinate is extracted from the outline data in the outline display data file 112 of FIG. 1, that is, the coordinate values of the multipoint line, and (X3, Y3) is obtained.
On the other hand, based on the material size data (720 × 280), the X dimension is 72
0, the Y dimension is recognized as 280, and it is checked whether both data are the same. If they match, subsequent editing processing is unnecessary, and the same data is edited and stored in the outer shape display data file 123. In the case of out-of-scale diagrams, they do not match. At this time, since the dimension display of the outer shape and the corner cutout portion is written on the right side in the Y direction and the lower side in the X dimension direction from the outer line display origin, the dimension data meeting this condition is written in the dimension display data. Extracted from the file 114 and arranged in the order of the character code value, that is, the smallest dimension value, for those having a note angle of 90 indicating the dimension value (X1, X2, X3). Similarly, those with an angle of 0 are arranged (Y1, Y2, Y3).

I. When the number of the arranged data is one in both the X direction and the Y direction, since there is no corner cut, the outline data remains rectangular. Therefore, the outline data is modified as follows.

Multipoint line: coordinates (0,0), (X1,0), (X1,
(Y1), (Y1,0), (0,0) b. If the number of data is 2 in each direction, there is one corner notch, and if there are three, there are two corner notches, and a notch symbol is placed on the corner at the corner notch. Since it has been compared with the coordinates of the mounting point, determine which corner has a notch based on a predetermined standard,
Outer line data is obtained and replaced based on the relationship with the number of data, and is stored in the outer shape data file 123 after editing. For example, when the number of data is three in both the X and Y directions, there are corner cutouts at all four corners, and thus the following is obtained.

Multipoint line: coordinates (0, Y1), (X1, Y1),
.., (0, Y2), (0, Y1) Here, it is assumed that X is 0 at the start point of the multipoint line, and Y is the smallest among them.

On the other hand, the processing division code in the creation instruction file 101 is “1”
In the case of, since there is no corresponding data in the outline display data file 112, the outline display data is created by the following means,
After editing, it is stored in the external shape data file 123.

The outline data is edited based on the data of the material size and the corner notch dimension / corner number in the creation instruction file 101 on a predetermined basis. The corner numbers are 1 to 4 counterclockwise from the processing origin. For example, if the material size is X _M ×
When Y _M and the n-th corner notch dimension is X _cn × Y _cn , the following is obtained.

Multipoint Line: coordinates _{(0, Y C1), (} X C1, Y C1), (X C1, 0), (X M -X C2, 0), (X M -X C2, Y C2), (X _{M, Y C2), (X} M, Y M -Y C3), (X M -X C3, Y M -Y C3), (X M -X C3, Y M), (X M -X C4, Y _M), the _{(X M -X C4, Y M} -Y C4), (0, Y M -Y C4), (0, Y C1) linetype (S), the line size (H).

Here, when the values of X _cn and Y _cn are 0, since there are a plurality of data in which X and Y have the same value, the data is corrected to one except for the coordinates of the start point and the end point. For example, if there is no corner notch in all four corners, multipoint line: coordinates (0,0), (X, 0), (X, Y), (0, Y), (0,0) (S) and the line size (H).

Although the outline data is a multipoint line, geometric figure data may be expressed as (4 + 2n) general LINE data (n is the number of corner cutouts).

Next, the following character / graphic data is created as material size data.

NOTE: Coordinates (X _mp , Y _mp ), character code (X _M × Y _M ), angle (0) In addition, corner notch symbol data is created with two data per corner on a predetermined basis.

Symbol: Coordinates (X _sn1 , Y _sn1 ), symbol number (○○○), coordinates (X _sn2 , Y _sn2 ), symbol number (○○○), symbol attachment point coordinates (X _sn1 , Y _sn1 ) and ( X _sn2 ,
Y _sn2 ) is (X) of the first corner corresponding to the corner number.
_(S11 , _YS11 ) is (0,0), ( _XS12 , _YS12 ) is ( _XC1 , _YC1 ),
(X _S21 , Y _S21 ) in the second corner is (X _M , 0), (X _S22 ,
(Y _S22 ) is (X _M −Y _C2 , Y _C2 ) and (X _S31 ,
(Y _S31 ) is (X _M , Y _M ), (X _S32 , Y _S32 ) is (X _M −X _C3 , Y _M −Y
_C3 ), (X _S41 , Y _S41 ) at the fourth corner is (0, Y _M ), (X
_S42, Y _S42) is a point _{(X C4, Y M -Y C4} ).

After editing these data, the external shape data file 12
Store in 3.

The symbol figure data corresponding to the symbol number is sent to the symbol figure file 140 by the final output information synthesizing unit.
The graphic data is extracted from and synthesized.

Here, the corner notch symbols are displayed on two diagonal lines per corner, but are arranged at the center point of the corner notch processing, and the processing type code and the processing size to that effect are expressed. You may.

<Description of Processing Content Display Data Editing Unit> The processing content display data editing unit 121 in FIG. 1 is roughly divided into processing for adding / deleting and editing processing contents, correcting / editing processing point coordinates, and correcting processing for displaying processing contents. explain.

<< Processing Content Addition / Deletion Editing Process >> The processing contents information data file 113 is subjected to a process content information addition / deletion process using the information specified by the creation support file 101.

For example, if the processing content is indicated as (D, O, 100 × 100), data having a processing point of coordinates (100,100) is extracted from the processing origin display data file using the processing origin as a reference point, and the cancellation processing is performed. .

When there are a plurality of processes on the same coordinate and only a specific process is to be deleted, the type and size of the process are also specified, so the data is extracted and deleted.

If the processing content is indicated as (A, O, 300 × 150, MA, 100 × 50), it means that it is necessary to add a 100 × 50 rectangular hole at the coordinates (300,150), The following data is created based on a predetermined standard.

NOTE: Coordinates (300,150), Rectangle: coordinates (300,150), horizontal length (100), vertical length (50) Similarly, if (A, O, 86 × 60, S) is specified, “ It means that a hole with the code “S” is required, and the processing type is “tap”, the size is 4 and the processing display code is Is determined based on a predetermined standard, and it is determined that a circle having a radius of 2 is to be drawn.

Circle: coordinates (86, 60), radius (2), line type (S), line size (M) In this case, the origin code is (O), that is, a point that becomes the lower left corner when the material is developed. The example when the value with the machining origin set to is designated is entered, but the origin code is (O)
In other cases, the coordinate values specified from each reference plane are referred to the origin code, bending pattern code, bending dimension value, etc.
It is determined by converting into a coordinate value from the processing origin according to a predetermined standard.

When the processing division code is "1", there is no corresponding data in the processing content display data file, and the data is processed in the same manner as the creation of the additional processing data in accordance with the content specified by the new creation instruction file 101. And store it with an identification number.

<< Correction / Editing Process of Processing Point Coordinates >> Next, processing for correcting the processing point coordinates for the processing point created out-of-scale is performed on the processing content display data edited in the above processing.

First, note the note with an out-of-scale mark in the dimension display data file 114 in FIG. 1. When the angle of the note is 90, the value of the X coordinate of the note and the value of the circle or rectangle data are displayed. The data having the same X coordinate is extracted from the data, and the value of the X coordinate of the circle or rectangle is replaced with the value of the character code of the note.

Further, the X coordinate of the NOTE that indicates the processing content code having the same processing point display combination number as the circle or rectangle data is also replaced.

Similarly, when the angle of the note is 0, the processing content display graphic (circle or rectangle) and the value of the Y coordinate of the processing content display code are corrected. NO above with out-of-scale mark
Repeat as many times as TE. In addition, since there may be a plurality of processing points that need to be corrected in correspondence with one note with one out-of-scale mark, the correction processing is performed on all the data.

修正 Correction processing of processing content display graphics≫ Finally, for each processing point display group number added in the processing in the part processing diagram graphic data layering section, the processing content is displayed based on the processing content display code data on a predetermined basis from the data of the processing content display code. Graphic data is obtained, and the processed display graphic data is replaced.

It should be noted that this is the correct shape,
Since the process is a process for correcting the figure into a scale, when the processing division code is “1”, the graphic data created by the processing content display data editing unit may be used as it is.

After editing the above processing results, the processing details display data file
Store in 124.

<Description of Dimension Data Editing Unit> The dimensional data editing unit 131 determines dimensional data based on a predetermined standard for the edited external shape data file 123 and the edited processing content display data file 124, and combines them with the two data. It is stored in the outer shape / machining / dimension data file 132.

<Editing of external dimension data> The dimension display data 230A to 23
The method of determining 0B will be described in detail.

Longitudinal outline data, i.e. the X coordinate from among the coordinate values of the multipoint line 211 and X _MG extracts maximum data, it obtains a value obtained by adding a constant d _0, located on the right side of the outline figure of the X-coordinate X _GL dimension line, Y coordinates of the transverse dimension line located on the lower side of the figure is a constant Y _GL.

Next, for each coordinate value of the multipoint line, Y
Arranging data in descending order of the coordinate, when the Y coordinate there are a plurality of same data, dimension X coordinate within which focus on maximum coordinates, points plus the increment d ₁ only X-coordinate to the coordinate the starting point of the auxiliary line, the end point creates a line segment to the point plus the increment d ₂ to X _GL only the number of the coefficients. For example, the dimension auxiliary line data 231A on the right side in the vertical direction in FIG. 2 is as follows.

LINE: coordinates _{(690 + d 1, 280)} , the coordinates _{(X GL + d 2, 280} ), the line type (S), determined by a predetermined reference line size (L) then the dimension line data (arrow) only the number of the coefficients.

 232A is as follows.

Arrow: start point coordinates (X _GL, 280), end point coordinates (X _GL, 0) finally determining dimensional numerical data 233A as same as the Y coordinate value of the start point of the arrow. From the dimension line to the X coordinate of NOTE
When d _3, NOTE: coordinates (X _GL + d _3, 280), a character code (280), the angle (0) or more LINE, arrows, the NOTE, recognized as a set of dimension data 230A.

Similarly, the dimension data in the horizontal direction is obtained from the Y coordinate (Y _GL ) of the dimension line and the coordinate value of the multipoint line according to a predetermined standard.

 The 230B part is as follows.

LINE: Coordinates (720,19−d ₁ ), Coordinates (720, Y _GL −d ₂ ), Line type (S), Line size (L) Arrows: Start point coordinates (720, Y _GL ), End point coordinates (0, Y _GL) NOTE: coordinates (720, Y _GL -d _3), the character code (720), the angle (90) <machining point dimensioning data editing> Next, a method of determining the dimensioning data 230C~230D for machining point explain.

Similarly, outline data, that is, multipoint line 21
From the coordinate value of 1, extract the data with the maximum Y coordinate
And _MG, it obtains a value obtained by adding a constant d _0, and Y-coordinate Y _KL transverse dimension line on the upper side of the outline figure, X-coordinate of the longitudinal dimension line on the left side of the figure is a constant X _KL .

On the other hand, for each coordinate value of a circle or a rectangle, data is arranged in descending order of the Y coordinate, attention is paid only to the coordinate having the largest Y coordinate, the coordinate point is set as the start point of the dimension auxiliary line, and the X coordinate of the end point is X _KL A line segment of −d ₂ is created only at this point.

Further, the dimension line data (arrow) is obtained at the corresponding location according to a predetermined standard. Further, the dimension numerical data is determined as being the same as the Y coordinate of the starting point of the arrow. The unit graphic data for the 230C part is as follows.

LINE: start point coordinates (708,238), end point coordinates (X _KL -d _2, 238), the line type (S), the line size (L) arrow: starting point coordinates (X _KL, 238), end point coordinates (X _KL, 0) NOTE: the coordinates (X _KL -d _3, 238), a character code (238), the angle (0) Similarly, the transverse dimension data of the dimension line Y-coordinate Y
_{It is obtained from KL} and the coordinate value of the processing point by a predetermined reference. Each constant is a value determined corresponding to the value of the scale.

The above results are combined with the original data and stored in the external shape / machining / dimension data file.

Although this embodiment shows an example using the progressive dimension entry method, the coordinate dimension entry method can be applied in a similar manner.

<Explanation of Output Information Synthesizing Unit> Finally, the output information synthesizing unit 141 synthesizes the data in the external shape / machining / dimensions data file 132 and the data in the comment display data file 115, and stores the data in the part machining drawing graphic file 142. When the processing division code in the creation instruction file 101 is "1", there is no comment display data, so that the comment is created based on a predetermined standard. For example, to draw on specific coordinates from scale, material, plate thickness, bending pattern code, bending dimension, side number, etc. in the creation instruction file, create NOTE: stamp position symbol, and other unit figure data such as LINE data . The data of 224 to 248 are as follows.

NOTE number coordinate character code angle _{241 X Z, Y Z SPHC,} 2.3 (0) 242 X S, Y S 1/4 (0) 243 X P, Y P AN (0) 244 X R, Y R bending R: leopard Jun (0) 245 X _H , Y _H nu: Leopard radix (0) 246 X _B , 19 BBY (0) LINE (247): Coordinates (30,19), Coordinates (690,19), Line type ( D), line size (L) Symbol (248): coordinates (X _SK , Y _SK ), symbol number (△△△) Note that note (246) indicating the bending position has a bending pattern code of (AN). From the relationship that the bending dimension is (19), the side code is (U) or (D), and the material size is (720 × 280), the coordinate value and the processing type indicate the bending direction and the bending axis in bending. The character code (BBY) and the angle of the effect are obtained based on a predetermined standard.

Further, the broken line indicating the bending position, that is, LINE (247) is obtained from the relationship between the outline data and the bending position and the side number, and the line type is set to the broken line, that is, (D).

In addition, the position of the stamp is tentatively determined on the specific coordinates (X _SK , Y _SK ) from the corner cutout at the lower left corner of the part, and the required area is defined in advance in relation to the size of the stamp character and the number of stamps. Therefore, the coordinates are officially determined by checking that there are no necessary machining points in the defined range.

Other data is similarly created on a predetermined basis. After that, the data is synthesized, and the applied drawing size is determined based on the relationship between the scale and the material size according to a predetermined standard, and the symbol number (×
Xx) is determined, and unit graphic data corresponding to the symbol number is extracted from the symbol drawing file 140 and synthesized.

At this time, the coordinate value (X _n , Y _n ) of each data is corrected so that the center of the component (X _C0 , Y _C0 ) becomes the center of the drawing, that is, the coordinates of (0, 0). That is, for the value of (X _n , Y _n , (X
_n −X _C0 , Y _n −Y _C0 ) to obtain a coordinate value, and use this as a corrected value. Then, the data recognized by the above processing is arranged, and the next data to be stored in the part processing diagram file 142 is obtained.

(1) Drawings that can extract machining information that can be input data of the CAM system without a drawing later. (A) Drawing number (identification number) of part processing drawing and coordinate data of the marking position.

(B) Material material, plate thickness and material cutting dimension data.

(C) Processing content code and processing position coordinate data for each processing point (d) Surface treatment specification data.

(E) Bending pattern code, bending position, bending front / back direction code, and bending radius data for each bending axis in bending.

(2) In addition to the above, a designer can easily visually check a drawing such as interference by a designer. (A) Scale data of the drawing.

(B) Outline data of parts.

(C) Graphic data (circle or rectangle) of the processing shape and processing size for each processing point.

(D) Dimension data (dimension lines, dimension auxiliary lines, dimension values) (e) Drawing frame diagrams and other comment data.

FIG. 2 shows an embodiment in which a part of the contents of the part processing diagram graphic file is output by a graphic output device.

〔The invention's effect〕

As described above, according to the present invention, most operations for creating and changing a new or similar part processing drawing can be automated by simple operation instructions. In particular, the processing contents can be displayed on an actual scale and dimension lines can be automatically entered without having to interact with the expensive graphic display device for a long time, so that the design can be saved. In addition, since a visual check can be easily performed, a design error can be prevented. In addition, designers can use CAM without worrying about drawing constraints.
Since a drawing from which machining information serving as input data of the system can be extracted can be automatically created, it is possible to easily connect data between CAD / CAM systems, which is extremely useful in practice.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of the present invention, and FIG. 2 is an explanatory diagram showing a specific embodiment of the present invention. 101: Creation instruction file 102: Drawing file 103: Graphic input interface unit 104: Part machining drawing figure file before change 105: Part machining drawing figure file before change 111: Graphic data layer separate unit 112: Outline display data file 113 : Processing content display data file 114: Dimension display data file 115: Comment display data file 121: External shape data editing section 122: Processing details display data editing section 123: Edited external shape data file 124: Edited processing details display data file 131: Dimension data editing unit 132: Outline / machining / dimension data file 140: Symbol figure data file 141: Output information synthesis unit 142: Parts machining figure figure file

Claims (1)

(57) [Claims] 1. An apparatus for creating information necessary for creating a part machining drawing, comprising: (a) means for storing instruction information for creating a part machining drawing; and (b) a drawing file in which similar part machining drawings are filed. Extracts the drawing from the drawing, reads the drawing data through the figure input interface unit, converts the drawing data into character figure data and geometric figure data again, and makes note, circle, LINE, etc. (C) storing the unit graphic data in the pre-change part processed figure graphic file as an aggregate of the unit graphic data of (c); -Ii) a processing content display data group, (c-iii) dimension display data group, and (c-iv) comment display data group, stratified according to a predetermined standard, (D) means for recognizing information of an out-of-scale diagram on a predetermined basis for dimension numerical data in the dimension display data group, and (e) Modify the contents of the outline display data file with out-of-scale diagram information or the above-mentioned creation instruction information.
Means for editing and storing as a figure shape data file after editing; (f) correcting, deleting or adding the contents of the processing content display data file by out-of-scale diagram information or the creation instruction information, or correcting the processing point coordinates. Means for correcting the processing content display figure to the actual scale and storing it in the processing content display data file after editing; and (g) correct dimensional data conforming to the contents of the external shape data file after editing and the processing content display data file after editing. Means for newly creating and combining the data of the two files and storing the data as an external shape / machining / dimension data file. (H) The data of the external shape / machining / dimensional data file and the processing of (c-iv) It is created based on the data in the comment display data file that has been stratified and stored or the content of the creation instruction information according to a predetermined standard. Synthesized with the comment display data, and determines the applicable drawing size and drawing frame number from the scale data and the material size data, and corrects the coordinate values of each data so that the center of the part becomes the center of the drawing. Means for extracting and synthesizing the symbol graphic data of the drawing frame number from the symbol graphic data file and storing the extracted data as a part processed figure graphic file; (i) the information of the part processed figure graphic file created by the output information synthesizing unit is (Ii) A drawing from which machining information that can be input data of the CAM system without a drawing later can be extracted. (A) Drawing number (identification number) of part processing drawing and its marking position coordinates (b) Material and thickness of material And material cutting dimensions (size) (c) Processing content code and processing position coordinate for each processing point (d) Surface treatment specification data (e) Bending pattern code and bending position for each bending axis of bending (I-ii) In addition to the above, the drawing has a bending front / back direction sign and a bending radius, and allows the designer to easily check the drawing visually later. (A) Scale of drawing (b) Outline of part (c) Drawing of processing shape and processing size for each processing point (circle or rectangle) (d) Dimensions (dimension line, dimension auxiliary line, numerical value of dimension) (e) Drawing frame and other comments Automatic creation device for new or changed part machining drawing information.