JPH01175005A - Working system in binarization area - Google Patents

Abstract

PURPOSE:To accurately and easily determine a route by erasing a prescribed sequence from the outermost side dot string of binarization data correspondingly to the diameter of a using tool. CONSTITUTION:A graphic 4 is read out by a binarization data reader 2 to obtain a dot pattern graphic and the graphic is stored in a storage means 3. At the time of reading out the data stored in the means 3, a data processor 1 erases a value corresponding to the radius of a tool used by a processing means 11 from the outline of a dot string data pattern. A prescribed processing start point P1 of the erased data pattern is determined, an approximate curve following the outermost side of the dot string data and the approximate curve is followed by a means 12 for repeating the follow-up the approximate curve after working. Since the curve is formed by obtaining the initial straight line until it is bent correspondingly to the existence of dots and then obtaining the succeeding straight line, the whole curve is expressed as an approximate curve.

Description

[Detailed Description of the Invention] [41! The present invention relates to a method for machining within a binarized area using a numerically controlled machine tool with a simple configuration, which uses equipment that generates fewer errors due to operator operations, and which uses binary data obtained from the obtained binarized data. The purpose is to provide a processing method that can obtain data for accurately processing the inside of the value area.
In a method of machining a predetermined range with a processing tool based on the binary figure information G, there is provided a storage means for storing figure information read by a reader into the binary data, and a storage means for storing figure information read out from the storage means. and a data processing means for processing the data, the data processing means for erasing an amount of dot row data corresponding to the radius of the tool to be used from the contour formed by the read binary data; and means for obtaining an approximate curve tracing the outermost part of the remaining dot string data from a predetermined processing start point for the binarized data after processing, and repeating the above-mentioned means after processing, to obtain the approximate curve. It is constructed by processing the output of the means using a processing tool.

[Industrial Application Field] The present invention relates to a method for machining a binary region using a numerically controlled machine tool with a simple configuration.

Conventionally, CAM devices are used when grinding within a predetermined area of binary data, but it takes a long time until the binary data is obtained and from the time the data is obtained to giving commands to the grinding tool. It required large-scale equipment. Therefore, it was desired to develop a technology that can process the inside of the binarization area with a simple configuration.

[Prior Art] A numerically controlled machine tool is controlled by a processor and processes a workpiece by moving a tool based on predetermined data such as position and speed (i.e., a control program). When the target workpiece is a key top display character on a keyboard and a mold for resin molding is to be processed, an operator processes each character using a digitizer. That is, based on a figure obtained by enlarging characters obtained by phototypesetting technology, the X and Y coordinate values from the reference position are determined for each dot on the figure. After obtaining the outline of each stippled character through an operator's operation, calculations are performed using a dedicated device that generates processing data. Then, path data for when the tool operates is determined.

[Problems to be Solved by the Invention] When an operator operates a digitizer to obtain X and Y coordinate values, the required time and the accuracy of the obtained data vary greatly depending on the operator's operating technique.

Even for experienced operators, it took a long time to read even complicated figures such as kanji. Furthermore, it is a reality that it takes a considerable amount of time to proceed with the calculation using a dedicated calculation device.

The purpose of the present invention is to improve the above-mentioned drawbacks, to use equipment that causes fewer errors due to operator operations, and to obtain data for accurately processing the inside of the binarized area from the obtained binarized data. The objective is to provide a processing method that allows for

[Means for Solving the Problems] FIG. 1 is a diagram showing the principle structure of the present invention. In FIG. 1, 1 is a data processing means, 2 is a reader for binary data such as an image scanner, 3 is a data storage means, 4 is a figure, 5 is a processing tool, 11 is a means for erasing contour data, Reference numeral 12 indicates means for obtaining an approximate curve tracing the outermost part of the dot row data and repeating it after processing.

In a method of machining a predetermined range using the machining tool 5 based on binarized graphic information, the present invention has the following configuration. That is, the data processing means 1 includes a storage means 3 for storing information of the figure 4 read by the reader 2 into binary data, and a data processing means 1 for processing the data read from the storage means 3. means 11 for erasing an amount of dot rows corresponding to the radius of the tool to be used from the contour formed by the read binary data; and a predetermined processing start point for the binary data processed by the means 11. and a means 12 for obtaining an approximate curve tracing the outermost part of the remaining dot row data and repeating the means 11 after processing, and processing with a processing tool 5 based on the output of the means 12 for obtaining the approximate curve. It is.

[Operation] The figure 4 is read by the binary data reader 2 in FIG. data processing equipment
Assume that when reading the data stored in the storage means 3, the figure shown in FIG. 2 is obtained. For the convenience of the following explanation, only the outermost part of the dot pattern is depicted, but in reality the pattern has all dots on the inside. Regarding the outline of the dot row data pattern (the outermost dot row), the processing means 11 erases an amount corresponding to the radius of the tool to be used. A predetermined processing start point P1 is determined for the erased data pattern, and an approximate curve is traced by means 12. The line is expressed as an approximate curve because it is obtained from the initial straight line until it bends in response to the presence or absence of a dot, and then the next straight line is obtained. That is, as shown in FIG. 2, from the point PL, it moves along a solid line from below to the lower right, then rises and traces to the upper left. When the point P1 is reached, this path is preferably stored in the storage means 3. Next, the processing is transferred to the means 11, and the outermost contour of the dot row data pattern at that time is used again. Erase the amount corresponding to the radius of the tool.Means 1 from the next processing start point P2
2, trace the approximate curve. At that time, a new route is obtained from P2. Next, the data pattern of the contour is further erased by means 11, and the process of tracing the approximate curve from point P3 is repeated. In this way, routes are found until there are no more dot patterns.

If the data processing device 1 instructs the machining tool 5 to process according to this path, it is possible to accurately process the inside of the pattern area described above.

[Embodiment] FIG. 3 is an operational flowchart as an embodiment of the present invention, including processing when there is a window in the pattern and when there is no forward path to follow the route. In step (2), first set the tool diameter. Next, in step (3), it is determined whether there is binarized data. If there is no data, the process ends at step (2). When data is present, the contour dots are erased in step (3). In this process, if a path is determined so that the tool follows the outermost edge of the dot pattern, the tool will be machined to a larger radius, and therefore the "contour dots" will be erased from the outside of the pattern by an amount corresponding to the radius. Next, in step (2), it is determined whether there is a "window" that is not processed into the dot pattern. At this time, the dot pattern is also erased from the outline forming the window. When there is a window, a starting point is determined for the contour after erasure in step (3). Then, the steps after step (2) are processed, and if the contour dots have not all been processed in step (2) after the -cycle, the steps after step (2) are repeated. In step (2), when it is determined that there are four unprocessed windows, in step (2), processing is started from the outside of the figure as shown in FIG. In step (3), it is determined whether there is a forward path.This is because as the process progresses and the remaining dot pattern row becomes extremely thin, the path may not become a loop. When there are no more routes left, in step (2), the route taken up until now is retraced. Then, in step (3), it is determined whether or not the tool has returned to the starting point. If it has returned, the tool returns to the tool origin in step 0 and performs the next process.

If there is a route and it is to proceed in step (2), contour bending coordinate values are extracted in step (2).

This is because when tracing a dot row pattern, the coordinate values are determined by using endpoints before and after the direction of the dot row changes, and the points between the endpoints are treated as straight lines. Then, in step [phase], the tool path is heard. This is processed by continuously storing the coordinate values of the end points. In step (2), it is determined whether to return to the starting point, and the process is repeated until the return is made.

FIG. 4 shows graphic data collected using an image scanner for the upper part of the kanji character "kan".

Inside the data pattern are window parts Wl, W2. In the processing when W3 is present, the contour dots are first erased, then the window processing shown in FIG. 3 is sequentially performed for Wl, W2, and W3, and then the outer contour is processed. Then again,
The contour dots are erased for the entire pattern and processing is restarted from the window.

[Effects of the Invention] According to the present invention, at the beginning of determining the processing route using the tool, a predetermined number of dot rows from the outermost dot row of the binarized data are deleted in accordance with the diameter of the tool used. , the path is accurate without expanding beyond the size of the pattern. Furthermore, by obtaining data using a binary data reader, such as an image scanner, the data is easily obtained in a short time, and subsequent route decisions can be made easily and in a short time.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the principle configuration of the present invention, Fig. 2 is an example of a diagram of reading out stored data, Fig. 3 is an operation flowchart of the data processing device, and Fig. 4 is a reader for binary data. It is a figure showing where data was obtained by. ■--Data processing means 2--Reader 3 for binarized data--Storing means 4--Graphics 5--Processing tool 11--Data erasing and applying means 12-- Patent applicant for the method for obtaining an approximate curve: Representative Fujitsu Limited Patent attorney: Eisuke Suzuki Figure 1 Figure 2

Claims (1)

[Claims] In a method of machining a predetermined range using a machining tool (5) based on binarized figure information, a figure (4) read by a reader (2) to the binarized data is provided.
) storage means (3) for storing information of the storage means (3);
) Data processing means (1) for processing data read from
The data processing means (1) includes means (11) for erasing a dot row of an amount corresponding to the radius of the tool to be used from the contour formed by the read binary data; and the means (11). Regarding the binarized data after processing,
An approximate curve tracing the outermost part of the remaining dot row data from a predetermined processing start point is obtained, and after processing, the above-mentioned means (
11) and a means (12) for repeating step 11), wherein processing is performed using a processing tool (5) based on the output of the means (12) for obtaining the approximate curve.