JPH03214697A - How to create electronic component mounting data - Google Patents

Abstract

PURPOSE:To miniaturize equipment constitution and to save space and also to reduce the cast by instructing, by means of a coordinate instruction means, the coordinates on the image being read by an image scanner, or the like so as to generate X-Y coordinate data. CONSTITUTION:This consists of a process of gathering the relative coordinate data from the scanner device, which reads the image data of the printed board 1 where electronic parts are mounted, and the picture elements, which constitute an image, a designating process of designating plural mounting positions, and a data creating process of creating mounting basic data based on its designation. Hereby, the device can be made compact at large, and is inexpensive, and the data required for mounting can be made statically.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention reads pixel data displayed in dots,
The present invention relates to a method for creating mounting data for mounting electronic components.

[Prior Art] Electronic components, such as semiconductor chips and chip resistors, are mounted on printed circuit boards using reflow soldering. To implement this electronic component,
In order to instruct the mounting position according to the shape and type of the electronic component, it is necessary to create mounting data.

Here, a conventional method for creating mounting data for electronic components such as printed circuit boards is shown in FIG.

In FIG. 8, 27 is an optical lens, 28 is an X-Y table, 29 is a printed circuit board, 30 is a converter, and 31 is a CPU.

The operation of the conventional technology having the above configuration will be described below.

First, the XY table 28 on which the printed circuit board 29 is mounted is mechanically moved with the center of the optical lens 27 as a reference, and the coordinate data is read by the CPU 31 by passing the printed circuit board 29 through the converter 30.

[Problems to be Solved by the Invention] However, in the configuration of the prior art described above, the mechanism for ensuring the positional accuracy of the optical lens and the X-Y table, the accuracy of the drive unit of the coordinate reading device, etc. is complicated and large. Therefore, there was a problem that the equipment configuration was large and expensive.

The present invention solves these problems by specifying coordinates using a coordinate indicating device (light pen, mouse, tablet, etc.) on an image read by an image scanner, etc., and creating X-Y coordinate data. It is an object of the present invention to provide a method for creating electronic component mounting data that can reduce the size and space of equipment configurations and reduce costs.

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following configuration. That is, the present invention provides a scanner device for reading image data of a printed circuit board on which electronic components are mounted, a processing step for obtaining relative coordinate data from pixels forming the image, and a designating step for specifying a plurality of mounting positions. and a data creation step of creating basic mounting data based on the designation.

In the above configuration, it is preferable to include a correction processing means using information on the image image and reference scale data in order to improve the indication accuracy of the coordinate data than the image image data.

[Function] According to the configuration of the present invention described above, there is provided a scanner device that reads image data of a printed circuit board on which electronic components are mounted, a processing step for obtaining relative coordinate data from pixels forming the image, and a plurality of mounting steps. Since it consists of a specification process for specifying the position and a data creation process for creating basic mounting data based on the specification, the entire device can be made compact.
It is also inexpensive, and the data required for implementation can be created statically.

In addition, in order to increase the accuracy of specifying coordinate data from image data, which is a preferred embodiment of the present invention, a correction processing means using information on the image image and reference scale data is provided, which is necessary for more accurate implementation. You can create data efficiently.

[Example] Hereinafter, an example of the present invention will be described in more detail with reference to the drawings. Note that the present invention is not limited to the following examples.

FIG. 1 shows equipment (scanner device 2,
Computer (CPU) main body 3, image display device (C
RT) 4 and coordinate indicating devices 5 and 6.

Next, the operation of the configuration of the embodiment of the present invention described above will be explained.

First, a method for creating electronic component mounting data to which the present invention is applied will be explained. The object (printed circuit board 1) is placed on the scanner device 2.
Alternatively, an object 1) capable of reading an image of a board on which electronic components are mounted is set, and image data is created under the control of the CPU 3.

FIG. 2 shows the result of expanding the image data into the memory of the CPU 3 and outputting it to the CRT 4.

Next, in FIG. 2, 9 is a printed circuit board image, 7 is an X-direction reference scale, 8 is a Y-direction reference scale, and 10 is an image layer for managing the display thereof.

Figure 3 shows how a screen with vector data is displayed and relative seating reference axes (X direction 11 and Y direction 12) are subjected to relative seating correction under the control of the CPU. The seating surface indicating devices 5 and 6 shown in the figure and the X-axis 11 in Figure 3
and Y-axis 12 are controlled in conjunction with each other to designate a plurality of mounting positions of the printed circuit board image 9 and create basic mounting data.

Next, a processing step for obtaining relative coordinate data from pixels constituting the image image 9 to which the present invention is applied will be described. FIG. 2 shows a CRT screen on which image data obtained from a scanner device is developed in the memory of a CPU.

The X-direction reference scale 7, the Y-direction reference scale 8, and the printed circuit board image 9 are expressed on the CRT at the same reference level. That is, the X-direction reference scale 7, the Y-direction reference scale 8, and the image to be measured 9 have the same relative coordinate relationship.

Further, when displaying on a CRT, the image layer 10 and the coordinate layer 13 can be combined into a screen.

Note that the layer refers to a management method for displaying a screen on a CRT.

FIG. 3 shows coordinate reference axes (X direction 11, Y direction 12) created by the coordinate layer 13 having vector coordinates under the control of the CPU.

First, an image layer and a coordinate layer are combined on a CRT screen, and the reference scale 7 and the X-direction coordinate reference axis 11 are aligned.

Next, the reference scale 8 and the Y-direction coordinate reference axis 12 are aligned. The reference scale and coordinate reference axis to be matched may be from either the X direction or the Y direction. The relative correction methods for the X-Y reference scales 7 and 8 and the X-Y coordinate reference axes 11 and 12 include manual correction while looking at the CRT screen, inter-layer dot recognition processing (dot 7 and coordinates of the image layer reference scale). Both automatic corrections (taking the AND of the layer's coordinate reference axes and dot 1) are possible. The instruction process of specifying a plurality of mounting positions employs a method of specifying between layers on one screen and a plurality of split screens (Fig. 4: left and right split, Fig. 5: top and bottom split).

A method of specifying the mounting position will be explained with reference to FIG.

Set the X-direction coordinate reference axis 14 on the left CRT screen 16 to
Move the coordinates while looking at the CRT screen using the figure coordinate indicating devices 5 and 6, and then move the Y-direction coordinate reference axis 15 on the CRT screen 16.
The coordinate indicating device 5, 6 shown in FIG. 1 is moved while looking at the CRT screen to obtain the coordinate position of XIY2. The coordinate designation screen is switched to the CRT screen 1.9 on the right side, and the X-direction coordinate reference axis 17 and Y-direction coordinate reference axis 18 similar to those described above are moved to obtain the coordinate position of X 2 Y 2.

Similarly, regarding the upper and lower division processing shown in FIG.
X-Y while switching between the RT screen and the lower CRT screen.
Get the coordinate position of. In this way, a plurality of mounting reference data are obtained while instructing the mounting positions one after another.

8 FIG. 6 is an example of how the coordinate position determined from the coordinate reference axis is determined with higher accuracy. In the composite diagram 22 in which the image layer and the coordinate layer are combined, the scale correction between the X reference scale 23 of the image layer and the X-direction coordinate reference axis 24 of the coordinate layer is a vernier correction. In the embodiment, the accuracy of determining the coordinates is increased by 5/100 by relative coordinate correction that divides 19 out of 20 equal parts into 20 equal parts. Furthermore, by performing relative coordinate correction by dividing 49 out of 50 equal parts into 50 equal parts, the accuracy of determining the coordinates can be increased to 2/100. Similarly, it is assumed that the Y reference scale 25 and the Y direction coordinate reference axis 26 are also subjected to coordinate relative correction.

As described above, there is a processing step for obtaining coordinate data relative to the image data read from the scanner device on the CRT screen, a specifying step for specifying multiple mounting positions, and basic mounting data is created based on the specifications. The electronic component mounting data creation method consisting of the creation process is very compact compared to the conventional method equipped with an optical lens, a movable table, and a coordinate reading device. [Effects of the Invention] As explained above, this book According to the invention, there is provided a scanner device for reading image data of a printed circuit board on which electronic components are mounted, a processing step for obtaining relative coordinate data from pixels forming the image, and a specifying step for specifying a plurality of mounting positions. Since the method includes a data creation step of creating basic mounting data based on the specification, the entire device can be made compact and inexpensive, and the data necessary for mounting can be created statically.

In addition, in order to improve the accuracy of specifying coordinate data from image data, which is a preferred embodiment of the present invention, by providing a correction processing means using information on the image image and reference scale data, data necessary for implementation with even higher precision is provided. It is possible to achieve the effect of efficiently creating .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a method for creating electronic component mounting data according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a method for creating electronic component mounting data according to an embodiment of the present invention. Figure 3 is a screen diagram of the image read from the scanner device, Figure 3 is a coordinate screen diagram with the same belt data, Figures 4 and 5 are coordinate instruction screen diagrams, and Figure 6 is a coordinate correction screen with the same vernier scale. An explanatory diagram, FIG. 7 is a flowchart of the same, and FIG. 8 is a configuration diagram showing a conventional example. 1... Printed circuit board, 2... Scanner device, 3...
・CPU, 4...CRT, 5.6: Coordinate input device such as a tablet. 27: Optical lens 28: X-Y table 29: Printed circuit board 30: Converter 31: CPU Figure 8

Claims (2)

[Claims] (1) A scanner device that reads image data of a printed circuit board on which electronic components are mounted, a processing step that obtains relative coordinate data from the pixels that make up the image, a designation step that designates multiple mounting positions, and the designation thereof. A method for creating electronic component mounting data, comprising a data creation step of creating basic mounting data based on the following. (2) The method for creating electronic component mounting data according to claim 1, further comprising a correction processing means using information on the image image and the reference scale data in order to improve the indication accuracy of the coordinate data from the image image data.