JPH05282388A - Size checking device - Google Patents

Abstract

PURPOSE:To provide a size checking device which can automatically output the checking data. CONSTITUTION:The numbers are automatically and successively given to the size data for each graphic of the drawing data produced by a CAD. The data on these given numbers are stored together with the position data on the graphics of the size data received those numbers. Then these numbers are output double at a prescribed position on a drawing outputted onto a display screen or a drawing form based on the position data. Meanwhile the checking data consisting of the number data rearranged in the ascending order and the size data received the numbers are automatically generated and outputted to a prescribed checking form or a size measuring device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimensional inspection device, and more specifically, it comprises dimensional data set in a drawing created by CAD and number data for specifying an inspection site corresponding to the dimensional data. The present invention relates to a dimension inspection apparatus that automatically generates inspection data and outputs it to a display screen on which a drawing is displayed, a drawing sheet on which the drawing is drawn, a measuring apparatus that measures the dimensions of an inspection site, and the like.

[0002]

2. Description of the Related Art Conventionally, when inspecting parts and the like, first, C
The component drawing data created by AD is read and the read drawing data is output on paper. Next, a number is manually entered in sequence on each measurement site of the drawing output on the paper. Then, the number and size of each measurement site are manually input to the measuring device as inspection data. Then, the measuring device measures the measurement site of the actual part corresponding to the drawing. Then, the measured dimension and the dimension of the drawing are compared, and the result is represented by a numerical value.

[0003]

However, in the above-described method for inspecting parts, since the numbers are manually entered on each of the measurement sites, and the numbers and the dimensions of the drawings are manually input, the data must be input. However, there is a drawback that the data input work takes too much time and the work efficiency decreases. Not only that, but since it is a manual operation, it is easy to make an input error in the data. If left with incorrect data input, there is a risk that defective products may be overlooked at the inspection stage or good products may be discarded as defective products. In order to prevent such a situation from occurring, it is necessary to perform a careful check after data input and correct input errors, which causes a problem that the overall work efficiency is further reduced.

The present invention has been made in view of the above conventional circumstances, and an object thereof is to automatically assign a number for specifying a measurement site to a measurement site of drawing data created by CAD. It is an object of the present invention to provide a dimension inspection device capable of automatically outputting inspection data including the number indicating the measurement portion and the dimension of the measurement portion.

[0005]

The means of the present invention are as follows. The numbering means reads the dimension data for each figure from the drawing data created by CAD, and sequentially assigns a number to the read dimension data. The means sequentially assigns numbers to the dimension data based on, for example, the angle and distance from the center of the figure in which the dimension data is located.

The number output means stores the number data given to the dimension data by the number giving means together with the position data on the figure of the dimension data given the numbers, and these numbers are also stored together. It is output to a display screen or drawing sheet based on the position data.

The data output means transfers the data consisting of the number data given to the dimension data by the number giving means and the dimension data given those numbers to a predetermined inspection sheet or a measuring device for measuring those dimensions. Output. The means rearranges the number data assigned to the dimension data by the number assigning means in ascending order and outputs them together with the assigned dimension data.

[0008]

The operation of the means of the present invention is as follows. CA
A number is automatically assigned to the dimension data for each figure of the drawing data created in D. The assigned number data is stored together with the position data on the figure of the dimension data assigned with the numbers, and the numbers are output to the display screen or the drawing sheet based on the position data. In addition, data consisting of number data rearranged in ascending order and dimension data with those numbers is automatically generated,
It is output to a predetermined inspection sheet or a measuring device for measuring those dimensions.

As a result, a number for identifying the measurement site is given to the measurement site of the drawing data created by CAD, and the inspection data consisting of the number representing the measurement site and the dimension of the measurement site is automatically obtained. Can be output to.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a component inspection device. The CAD workstation 1 is adapted to perform drawing creation, automatic creation of inspection data, etc. according to an operator's instruction.
It consists of a keyboard and a digitizer.

The CAD workstation 1 has a CAD
A CAD drawing file 2 for storing a plurality of CAD drawings created in 1. and a plotter 3 for outputting those CAD drawings on paper are connected. Further, the CAD workstation 1 is also connected to a workstation 4 for integrating various measuring instrument groups, instructing execution of dimension measurement, and comparing and outputting measured data.

The workstation 4 is connected to a measuring instrument group including a coordinate measuring machine 6 for measuring the dimensions of parts, a tool microscope 7 and a micrometer 8. Further, the workstation 4 is connected to a measurement data file 5 that stores a plurality of measurement data measured by these measuring instrument groups.

FIG. 2 shows a part of the format of the CAD drawing read from the CAD drawing file 2 and output by the plotter 3. As shown in the figure, in the lower right corner of the drawing sheet, there are designer name, drafter name, drafter name, approver name, non-designated tolerance, issue date, scale, company name, etc., such as "YAJM300001". ", Etc., the drawing number of this drawing," TEST-B "the part name of this drawing,
The product model number of the product for which this part represented by "JX-1" is used is printed.

3 (a) and 3 (b) show an example of a graphic output in the above drawings. Figure (a) shows this part "TEST-B".
Is a side view of the same, and FIG. The front view is also output on the same drawing, but is omitted here. Further, arrows B and C are for indicating the up, down, left, and right directions of the display screen or the drawing sheet when the above side view, A arrow view, etc. are output.

In the side view of FIG. 1 (a), the dimensions of the respective parts of the component are 30 °, 20, 30, 140, 30 from the upper right to the counterclockwise direction and from the one closer to the center to the farther. , 30 and 30 are assigned. Also, in the figure (b), the same dimensions are 120, 30, 100, 12, R24, 26, 3
6 and φ34. These figures and dimension data are stored in the CAD drawing file 2 as described above.

FIGS. 4A, 4B and 4C show the file structure of the dimension data stored in the CAD drawing file 2. Same figure
(a) is a dimension data file 40 for one drawing. The dimension data file 40 includes a header section 41 and a data section 4
2, the data section 42 further includes a plurality of dimension data sections 42-i (i = 1, 2, ... N). n is the number of dimensional data in one drawing.

FIG. 1B shows the internal structure of the header section 41. The header part 41 stores a drawing number 41-1 (for example, “YAJM300001”), a drawing name 41-2 (for example, “TEST-B”), and a model name 42-3 (for example, “JX-1”). ..

FIG. 3C shows the internal structure of each dimension data section 42-i which constitutes the data section 42. The VIEW number 42-i-1 stores numbers such as "00", "70", "80" according to the front view, the side view, the top view and the like. In the VIEW name 42-i-2, characters such as "PV", "TV", "LV" are stored according to the VIEW number. The dimension notation position X coordinate 42-i-3 stores the X coordinate of the dimension display position on the figure, and the dimension notation position Y coordinate 42-i-4 stores the Y coordinate of the dimension display position on the figure. To be done. Both the X-coordinate and the Y-coordinate are represented by coordinates from the center of the figure, and are calculated by converting from the absolute coordinates of the center and the dimensional position.

Further, the dimension data section 42-i includes a character byte number 42-i-5 in which a byte number of one character representing a dimension character (number, symbol, etc.) is stored, a straight line represented by the dimension character,
"0", "2", "3", or "4" depending on the type of dimension such as angle (°), radius (R), or diameter (φ)
Is stored, numerical values “2”, “3”, “5”, etc. indicating the number of characters such as “26”, “30 °”, “3-φ20” are stored. The number of characters 42-i-7 of the dimension notation and the dimension notation character 42-i-8 in which the dimension notation characters “26”, “30 °”, and “3-φ20” are stored are included. ..

As a result, dimensional data can be easily output to both the display screen and the drawing sheet based on the center of the figure. In the present embodiment, based on the size data file 40 for one screen, the size data written in the drawing is given a number for identifying the written part, and a file of the number data is automatically created. ..

5 (a), 5 (b) and 5 (c) show the file structure of the number data. FIG. 1A shows a number data file 50 for one drawing. The number data file 50 also includes a header portion 51 and a data portion 52. The data part 52
Further includes a plurality of number data parts 52-i (i = 1, 2, ...
..N) The fact that n is the number of size data in one drawing is the same as in the size data file 40.

FIG. 2B shows the internal structure of the header section 51. The configuration is exactly the same as the header portion 41 of the dimension data file 40. FIG. 7C shows the internal structure of each number data section 52-i which constitutes the data section 52. The measurement point number 52-i-1 stores the number given to the dimension notation part. For the VIEW number 52-i-2, the front view, the side view,
A number representing a top view or the like is stored. Dimensional value 52-i-3
The dimensional value represented by a numerical value up to the third decimal place (micron) in units of millimeters is stored in the column. Dimensional tolerance upper limit value 52
Similarly, -i-4 stores the upper limit value of the dimensional error represented by numerical values up to micron. Dimensional tolerance lower limit value 52-
Similarly, the lower limit value of the dimensional error represented by a numerical value up to micron is also stored in i-5. Thereby, the inspection data including the assigned number and the dimension data can be automatically output.

Further, the number data portion 52-i includes a dimension notation position X coordinate 52-i-6 and a dimension notation position Y coordinate 52-.
i-7 and the number of characters 52-i-8. These include the dimension notation position X coordinate 42-i-3, the dimension notation position Y coordinate 42-i-4, and the number of characters 42-i-7 in the dimension notation of the dimension data part 42-i in the dimension data file 40. The data of is stored. Further, the number data section 52-i further includes dimension notation, comments, and other 52.
-I-9. In addition to the dimension notation characters, data indicating whether the dimension notation method is diagonal, horizontal, vertical, or the like is stored here. This allows
It is possible to automatically output the numbers for specifying the dimensional positions of the figures and the figures, which are output on the display screen or the drawing sheet, on the display.

6 (a) and 6 (b) show an example of the number data output on the display screen or the drawing sheet by the number data file 50. Arrows B and C indicate the up, down, left, and right directions of the display screen or the drawing sheet.

FIG. 3A shows the component TES shown in FIG.
Dimensions of side view of TB 30 °, 20, 30, 140, 3
The output of the numbers given to the notation positions of 0, 30, and 30 is shown. That is, the numbers enclosed in a square frame are displayed in the order of 1, 2, ... 7 in the counterclockwise direction from the upper right and from the side closer to the center point C to the side farther. Similarly, FIG. 6 (b) shows the above-mentioned component TEST- shown in FIG. 3 (b).
Dimension 120, 30, 100, 12, R2 of B's arrow view
The outputs of the numbers assigned to the positions indicated by 4, 26, 36 and φ34 are shown. That is, following the above, the numbers surrounded by a square frame are displayed in the order of 8, 9, ... 15 in the counterclockwise direction from the upper right and from the one closer to the center point D to the farther. ..

The outputs of the numbers shown in FIGS. 6 (a) and 6 (b) are overlapped with the outputs of the figures shown in FIGS. 3 (a) and 3 (b) in FIGS. 7 (a) and 7 (b). This shows a double output. As shown in the figure, the numbers 1, 2, 3 ... Enclosed by a square frame are written behind the respective size notations 30 °, 20, 30 ... Has been identified. In the present embodiment, such a drawing can be automatically created and output, and the size and the number of the figure can be easily visually recognized without wasting time.

FIG. 8 shows an example of the output of the inspection data including the numbers for specifying the dimensions and the dimensions specified by the numbers as described above. This output is also made by the number data file 50.

The inspection report 80 shown in FIG. In the column 81, numbers specifying the dimensions 1, 2, ... Are printed from the top. In the next illustrated dimension column 82, a dimension represented by a numerical value from a decimal point to a second decimal place in millimeters is printed together with symbols “°”, “R”, “φ” and the like indicating the type of dimension. .. In the following drawing tolerance column 83, the upper limit value column 83-
The upper limit value and the lower limit value of the dimensional tolerance are printed in the 1 and lower limit value fields 83-2 with positive and negative signs. The tolerance printed here is the number data part 5 of the number data file 50.
When not stored in 2-i (data value is “0”), the corresponding tolerance is read from the separately provided tolerance table and printed.

The inspection report 80 automatically created in this manner corresponds to the measurement dimension table shown in FIG. The dimensions measured by the measuring device are written in the measurement dimension table of FIG. 9, and the dimensions are compared with the dimensions of the inspection report 80, and the pass / fail of the component is determined based on the error allowable range indicated by the tolerance.

Next, the processing operation of the component inspection apparatus having the above configuration will be described with reference to the flowchart shown in FIG. This process is executed under the control of a control unit (not shown) inside the station body of the CAD workstation 1.

First, in step S1, the standard name (drawing number) of the CAD drawing corresponding to the part to be inspected is input from the keyboard of the CAD workstation 1. Next, in step S2, the CAD drawing data designated by the input of the standard name is read from the CAD drawing file 2.

Subsequently, in step S3, from the read CAD drawing data (see FIGS. 4 (a), (b) and (c)),
Dimension values, view information, and XY coordinates (absolute coordinates) are extracted. When extracting dimension values, the type of dimension (horizontal, vertical,
(Parallel, radius, drawing, etc.), size of the size character, number, pitch, tolerance, note (note, description), etc. are read.

In step S4, while displaying each of the extracted data on the screen, an intermediate file composed of the data is created. Subsequently, sort processing is performed in step S5. In this sort process, first, the XY coordinates of the dimension values are read from the created intermediate file, and the view origin (coordinates of the center point of the figure) is calculated and determined. Next, the notation position coordinates of each dimension value from the determined view origin are calculated. Then, based on the view origin coordinates and the calculated position coordinates of the respective dimension values, the angle and distance from the reference view origin are calculated. The dimension data is sorted (sorted) based on the angle and the distance. Although the position and direction serving as the start reference of this sort may be arbitrary, in the present embodiment, the sort start position is set to the 3 o'clock direction from the view origin, and the counterclockwise direction from the view origin to the far side. The dimension data is rearranged while the angles and distances are sequentially searched.

Following the above sort processing, step S6
Then, a sequential number with "1" as the first number is added to the dimension data subjected to the sort process in the sort order (the number data file 50 in FIGS. 5 (a), (b), and (c)).
reference). Thereby, the dimension data is specified.

Next, in step S7, the dimension data to which the sequential number is added is written in the CAD drawing, that is, displayed in an overlapping manner (see FIG. 7). Succeedingly, in a step S8, the plotter 3 is used to output the inspection result document data (see FIG. 8). The output of the inspection result data may be directly output to the workstation 4 instead of the output of the plotter 3 so that the measurement device can directly handle the data.

After step S6, steps S7 and S8 are not performed immediately, and the created data is saved in the CAD drawing file 2 as the number data file 50.
It is also possible to read this later and perform steps S7 and S8.

Based on the dimensional data specified by the added numbers created in this way, the workstation 4 shown in FIG. 1 has various types including a coordinate measuring machine 6, a tool microscope 7, and a micrometer 8. The measuring instrument group is controlled to measure the dimensions of the component to be inspected.

[0038]

According to the present invention, a number for specifying the inspection portion is given to the inspection portion of the drawing data created by CAD, and the number data is displayed in the figure and the size of the drawing data. Since it can be automatically output on a screen, drawing paper, etc., the number of steps of manually entering a number on a CAD drawing can be omitted, and work efficiency can be significantly improved.

Further, the inspection data consisting of the number assigned to the inspection site and the dimension data of the inspection site specified by the number is automatically generated to measure the inspection report sheet or the size of the inspection site. Since the data can be output to a measuring device or the like, the data input error does not occur by hand, and therefore the measurement work can be started immediately, and the work time can be shortened by that much, thereby further improving the work efficiency.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a component inspection device.

FIG. 2 is a diagram showing a part of a format of a CAD drawing.

FIG. 3A is a side view of a component output to the drawing, and FIG.

4 (a), (b) and (c) are diagrams showing a file structure of dimension data.

5 (a), (b) and (c) are diagrams showing a file structure of number data.

6A and 6B are diagrams showing an example of number data output on a display screen or drawing paper.

7 (a) and 7 (b) are diagrams showing an example of a display in which the number data is doubly output so as to be superimposed on the output of the figure.

FIG. 8 is a diagram showing an example of output of inspection data.

FIG. 9 is a diagram showing a measurement dimension table corresponding to an inspection report.

FIG. 10 is a flowchart illustrating a processing operation in the component inspection device.

[Explanation of symbols]

 1 CAD workstation 2 CAD drawing file 3 plotter 4 workstation 5 measurement data file 6 three-dimensional measuring instrument 7 tool microscope 8 micrometer

Claims (3)

[Claims] 1. A numbering unit for reading out dimension data for each figure from drawing data created by CAD, and sequentially assigning numbers to the read dimension data, and a numbering unit for assigning numbers to the dimension data by the numbering unit. Numbering means for storing the numbered data together with the position data on the figure of the dimension data to which the numbers are given, and outputting these numbers on the display screen or the drawing sheet based on the position data stored together. And a data output means for outputting data consisting of the number data given to the dimension data by the number giving means and the dimension data given those numbers to a predetermined inspection sheet or a measuring device for measuring those dimensions. A dimension inspection apparatus comprising: 2. The dimension inspection apparatus according to claim 1, wherein the numbering means sequentially assigns numbers to the dimension data based on an angle and a distance from the center of the figure where the dimension data is located. 3. The data output means sorts the number data given to the dimension data by the number giving means in ascending order and outputs the number data together with the given dimension data. The dimensional inspection device according to 1 or 2.