JPH02284209A - Cad/cam device - Google Patents

Abstract

PURPOSE:To attain confirmation in a short time when a shape is confirmed by an NC device according to NC data by outputting the NC data after adding the maximum value and the minimum value of data to it. CONSTITUTION:A graphic is defined by using a keyboard 6 and a mouse 7, etc., and the coordinates of a start point and an end point if a graphic element is a straight line, and the coordinates of a center, the start point and the end point if it is a circle are stored in a memory 2 for every graphic element, and a whole pattern is outputted on a CRT 5. Besides, at that time, all the pattern elements are compared in their sizes, and the maximum value and the minimum value of the pattern are obtained. Then, the NC data to be outputted to the NC device is outputted after the maximum value and the minimum value are added to it. Thus, at the time of the confirmation of the shape of the NC data on the CRT, since the confirmation can be executed by using the optimum size of a picture (magnifying factor capable of displaying a whole working route) from the first, the work shape can be confirmed in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an AO/CAM device (:AO/CAM device) for quickly confirming a machined shape on the NC device side when outputting NC data.

[Conventional technology]

Conventionally, the method of confirming the machined shape of NC data has been to display the shape on the CRT of the NC device. This involves analyzing -degree NC data, calculating the maximum and minimum values from the NC data, and calculating the magnification that can display all of them on the CRT of the NC device based on their size.
After that, multiply the shape by the magnification and trace the trajectory of the NC device on the CRT.
The shape can be confirmed by outputting it to the top.

That is, when confirming the shape on the NC device, the following processing is performed within the NC device. First, analyze the first block of NC data (usually NG tape) and determine the X-axis coordinate.
Register the Y-axis coordinate in memory. Next, the second block is analyzed and the X-axis and Y-axis coordinates are taken out and compared with the coordinates in the memory. As a result, the one with larger coordinates is registered in memory. If this process is performed to the end of the NC data, the data in the memory will contain the maximum value of the NC data. Find the minimum value in the same way. N obtained in this way
The magnification that can be displayed on the CRT of the NC device is determined based on the maximum and minimum values of the C data. The magnification is the ratio of the length of the CRT of the NC device to the length determined from the maximum and minimum values of the NC data. In this case, the CAD/CAM device outputs only NC data.

Figure 2 shows the configuration of the AD/CAM device that outputs the above NC data. First, a figure is defined using the keyboard (6), mouse (7), etc. Next, the defined figure is (: CRT (5) based on the control of PU (1)
After confirming the shape above and specifying the machining path, convert it to NC data. The converted NC data is then stored in an external storage device (
8) is stored on the floppy disk and sent to the NC device via this. In the figure, (2) is the memory, (
3) is a printer, (4) is a paper tape input/output with 9 positions, (9)
indicates a plotter, and (10) indicates a bus.

[Problems to be Solved by the Invention] However, as described above, in order to confirm the shape with the NC device, it is necessary to operate the NC device once to analyze the NG data. For this reason, depending on the length of the NC data, it may take a considerable amount of analysis time to confirm the shape.

This invention was made in order to solve the above-mentioned problems, and is a CAD/C that can output NC data that allows confirmation of machined shapes in a short time on an NC device.
The purpose is to provide an AM device.

[Means to solve the problem]

The CAD/CAM device according to the present invention is characterized in that a maximum value and a minimum value of the data are added to NC data to be outputted to the NC device.

[Operation] The CAD/CAM device according to the present invention adds the maximum value and minimum value of the data to the NC data and outputs it.
The data can be confirmed in a short time when the shape is checked using an NC device.

[Example] An embodiment of the present invention will be described below.

First, when processing with an NC device, NC data is created with a CAD/CAM device. This NC data is created in the same way as in the past, by defining a graphic using the keyboard (6), mouse (7), etc., and storing all graphical elements in the memory (2). If the graphic element is a straight line, the coordinates of the start point and end point are stored in memory for each graphic element (2
). The operation on the CAD/CAM device then outputs the overall diagram onto the CRT.

Also, at this time, internal comparisons are made for all graphical elements to determine the maximum and minimum values of the graphic. This value is updated each time a new element is created.

That is, FIG. 1 shows a loop for updating the maximum and minimum values of graphic elements by CPU (1). First, a predetermined area of memory (2) that stores the maximum and minimum values of graphic elements is initialized. In this state (Sl), the graphic element is stored in the memory (2
) to take it out from S2. S3) The maximum value and minimum value of the extracted figure are determined and stored in a predetermined area of the memory (2). The maximum value of the figure extracted through this process is compared with the current maximum value (S4), and if the current maximum value is larger, that value is updated and stored in a predetermined area of the memory (2) (S5). The minimum value is updated in the same way.

Then, use the maximum and minimum values obtained in this way as GMA
Enter the values in the X code and GMIN code and add them to the beginning of the NC data as shown below.

NoolGMAXX1000Y1500GMINX-1
000Y-150ONO02G92XOYO NO03GOOX1000YQ NO04GOIY-150O NO05GOIX-100O NO06GOIY150O NO07GOIX100O NO08GOIYO N009MO2 Here, for example, N0OI of the 1st block is code number,
For GMAXX1000Y1500, the maximum value is X-axis coordinate Te1
000, 1500 in Y-axis coordinate, GMINX-1000Y
-1500 indicates that the minimum value is -1000 on the X-axis coordinate and -1500 on the Y-axis coordinate. As a result, when confirming the shape with the NC device, the NC device recognizes GMAX and GMIN, so that the NC data is not read blankly and CR
The shape can be displayed by calculating the magnification on T.

Therefore, according to the above embodiment, the maximum value of the first block,
Since the minimum value was added to the NC data, the NC device side
There is no need to read and analyze all the data, which speeds up the process.

In the above embodiment, the maximum and minimum values of the machining path were added as part of the NC data, recognized by the NC device, and treated as part of the NC data. The data may be read before confirming the shape in the NC device. Also, as a data format with the NC device, GM will agree on the maximum and minimum values.
AX, GMIN code was used, but this code is N
O If the format is determined according to the device side, GMAX%G
It doesn't have to be MIN.

[Effects of the Invention] According to the present invention, the maximum value and minimum value of the data are added to the NG data to be output to the NC device.
/The NO data output from the CAM device is sent to the C of the NC device.
When checking the shape on RT, you can check from the beginning with the optimal screen size (magnification that allows the entire machining path to be included).

[Brief explanation of drawings]

Figure 1 is a flowchart of the process for determining the maximum and minimum values performed by the CAD CAMAM device PU, and Figure 2 is a flowchart of the process performed by the CAD CAMAM device PU.
FIG. 2 is a configuration diagram of an AD/C:AM device. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] A CAD/CAM characterized by adding maximum and minimum data values to NC data to be output to an NC device.
Device.