JPS6065310A - Data producer - Google Patents

Abstract

PURPOSE:To produce the highly accurate NC data by detecting a hole of a printed board through a video camera and obtaining the video signal of the camera to decide the center of the hole to give a correction to the NC data. CONSTITUTION:An NC action is given to an XY table 2 so that an insertion hole of a printed board 3 fixed to the table 2 of an NC tape producer 1 is put under a correction camera 8 positioned at a fixed distance 9 from a detection camera 4. At the outset, a vertical internal bisector is obtained for two intersecting points between the outer circumference of the hole detected by the camera 8 and a scan line set previously. Then a bisection point of the two intersecting points between said internal bisector and the outer circumference of said hole, i.e., the coordinates of the hole center position is obtained by a correction processor 13. The difference between said center point and the NC value is obtained and then sent to the controller main body as the output of the processor 13. The visual NC value receives addition or subtraction for highly accurate corrections of the NC data.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a data creation machine that automatically creates NC data with high accuracy for use in an automatic insertion machine for electronic parts and the like.

Conventional configurations and their problems In general, data for automatic insertion machines for electronic parts. For example, in an NC tape making machine, a printed circuit board is set on an X-Y table, and the NC tape must be 97" The image of the inserted insertion hole was measured and stored by matching it with the cross-line scale, and the operator performed all input operations from the keyboard with respect to this insertion point, and finally punched out the NC data.

However, the accuracy of the conventional method was determined by visual inspection of the alignment of the scales of the insertion hole position and the O-sline, and there were problems with the accuracy due to the skill of the operator.

Purpose of the Invention The purpose of the present invention is to detect the center of the insertion hole using image processing and perform NC tape correction processing to easily create high precision NC data in order to solve the above problems. It is.

Structure of the Invention The present invention provides a projector with sufficient illuminance to recognize holes in a printed circuit board, a video camera and a camera for detecting the holes,
A means for processing the video signal and a center of the camera;
N C Day JirM+iT-, by the amount of deviation from the hole.
UfJ-n-3 apz i#4? , N('Gee AI/+:
+:G)M+, which can reduce process defects due to incorrect insertion of electronic components in automatic insertion machines and the like.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 shows the configuration of an NC tape making machine in an embodiment of the present invention.

The camera 4 used to detect the insertion hole of the printed circuit board 3 fixed on the XY table 2 of the N'C tape making machine 1 was used to position the image on the monitor TV 5 as shown in Figure 2. However, the final position was determined by the operator. Since we relied on visual judgment, even if the holes on the board were perfectly round like 6 in Figure 2, there were some that were oval or partially cut out like 7.
There was a problem with its accuracy.

Therefore, the hole position correction camera 8 is positioned at a certain distance 9 from the detection camera 4, and the difference is stored in the storage section of the controller 10. XY under camera 8 for correction
Perform NC operation on the table.

As shown in Figure 3, which was detected when the NC came to the first hole position? ) image processing is performed on the hole 12 by the correction processing device 13.

The hole 15 in Figure 3, which was detected by the correction camera 8 using the floodlight 14 to detect the insertion hole of the printer I/board 3, is vertically bisected by the two points that intersect the fixed scanning line 16 set in advance and the outer periphery of the hole. Find the line, find the coordinates of the two bisected points where the line intersects with the outer periphery of the hole, that is, the center 17 of the hole, and find the difference from the center of the correction camera, that is, the visually observed IqC value 18. .

This length is used as the output of the correction processing device to the control main body
, it has become possible to perform highly accurate correction by adding or subtracting from the visually observed NC value.

By performing the above operations for each insertion point, it became possible to create a highly accurate NC tape that does not rely on visual inspection.

Effects of the Invention Compared to the conventional method that relied on visual inspection for the final judgment, the present invention adds a self-correction function, making it possible to make even a rough precision NC tape highly accurate. Since data is rewritten, even beginners can now create data without any problems.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an NC tape making machine according to an embodiment of the present invention, Fig. 2 is a diagram of the display screen of a monitor TV when captured by a detection camera, and Fig. 3 is a diagram of a display screen captured by a correction camera. It is a display screen diagram of a monitor television. 2...XY table, 3...-printed circuit board, 4 detection camera, 5...monitor TV, 8...
...Correction camera, 13...Correction processing device,
14...Floodlight, 19...Monitor TV. Name of agent: Patent attorney Toshio Nakao and 1 other person8
〉 Ward Ward ■ Law Law

Claims (1)

[Claims] A floodlight that maintains illuminance sufficient for the camera to recognize the hole in the printed circuit board, a camera that detects the hole, and arithmetic processing of the video signal from this camera to calculate the distance between the center of the camera and the center of the hole. and a means for correcting hole position data by the calculated distance.