JPS62119607A - Automatic programming device - Google Patents

Abstract

PURPOSE:To recognize the shape of a cut region by providing a device displaying a path scanned by a central processing unit according to the instruction of a scan path instructing device as a processing path of a tool. CONSTITUTION:When a data as to a closed curve and a cutting depth or the like representing the shape of the cutting region from an input device 1 or a scan path instruction curve instructing a path to be scanned by a CPU 2 from a scan path instruction curve input device 6 is inputted respectively, the CPU 2 constitutes a shape data to be cut based on the inputted data and a storage device stores it together with the scan path instruction curve. At the constitution of the shape data, the CPU 2 expands a work in a 2-dimensional coordinate space of the CPU 2 based on the inputted data. Whatever the shape of the cut region of the work may be, the shape is recognized accurately by instructing the path to be scanned by the central processing unit.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an automatic programming device, and more specifically (no matter what shape the processing area of the workpiece is,
The present invention relates to an automatic programming device that recognizes this and outputs NG (numerical control) data for processing the workpiece.

[Conventional technology]

Conventionally, as this type of automatic programming device,
There was something shown in the figure. In FIG. 5, (11) is an input device for inputting various data such as a machining shape of a workpiece (not shown), a machining method, and a curve representing a cutting area to be cut; (2) is an input device of a predetermined size; A central processing unit (having a two-dimensional coordinate space of Below, C.P.
(31 is input data, CPU
(21 is a storage device that stores the input data processing procedure executed to calculate NC data and the processing results of (21), etc.; (5) is CPU' that stores the NC data calculated by (2); It is an output device that outputs.

Next, regarding the operation of conventional automatic programming devices,
This will be explained with reference to FIGS. 6 and 7.

In Fig. 6, Fig. 6 (-) shows the appearance of the workpiece before cutting, Fig. 6 (b) shows the area to be cut, that is, the shape of the cutting area, and Fig. 6 (c) shows the appearance of the workpiece before cutting. This figure shows the appearance of the workpiece afterward. Further, FIG. 7 is a flowchart showing the operation of the automatic programming device.

First, when data regarding the closed curve representing the shape of the cutting area shown in FIG. 6(1)), the cutting depth, etc. are input from the input device (1) (step 71), the CPU (
21 constructs shape data to be cut based on the input data (step 72), and stores this in the storage device. Note that when constructing the shape data, the cPU (2) develops the cutting area of the workpiece in the two-dimensional coordinate space of the CPU (2) based on the input data. Next, when an appropriate instruction from the operator is given, CPU (2+) scans the coordinate space of CPU (21) in the X-axis direction (or Y-axis direction) (step 73), and It is determined whether the point is within the cutting area (step 74).If the scanned point is within the cutting area, as shown in FIG. The machining path is displayed on the display device (4) (step 75), and scanning is continued.Also, when the scanned point is not within the cutting area, a check is made to determine whether or not recognition of the cutting area has been completed. Judgment step 7B)
If it is not finished, reverse the scanning direction and shift it in the Y-axis direction (or X-axis direction) (Step 7
7).

[Problem that the invention seeks to solve]

By the way, the conventional automatic programming device with the above configuration scans in the X-axis direction and in the Y-axis direction.
Since the cutting area of the workpiece is recognized, if the shape of the cutting area is as shown in FIG.
) has a problem in that the shaded portion of the cutting area cannot be recognized, as in the machining path of the machining tool shown in FIG. 9(b).

The present invention has been made to solve the above problems,
Another object of the present invention is to provide an automatic programming device that recognizes the shape of a cutting area and outputs NC data necessary for cutting a workpiece.

[Means for solving problems]

Therefore, the present invention has an input device for inputting data necessary for processing the workpiece and a two-dimensional coordinate space of a predetermined size, and the workpiece is processed into the two-dimensional coordinate space based on the input data. A central processing unit that expands the cutting area of the object and scans the two-dimensional coordinate space to calculate the machining path of the tool that cuts the workpiece as NC data; an output device that outputs the NC data; A scan path instruction curve input device for inputting a scan path instruction curve that instructs the path that the device should scan; and a scan path instruction that instructs the central processing unit to scan the path based on the input scan path instruction curve. Equipment, data necessary for processing the workpiece, scan path instruction curve and NC
An automatic programming device is constituted by a storage device that stores data and a display device that displays a path scanned by a central processing unit according to instructions from a scan H path indicating device as a machining path of a tool.

[For production]

In the automatic programming device configured as described above, when the data necessary for processing the workpiece and the scan path instruction curve are respectively inputted by the input device and the scan path instruction curve input device, the central processing unit executes the processing based on the input data. The cutting area of the workpiece is developed in a two-dimensional coordinate space, and when a path to be scanned is instructed based on a scan path instruction curve inputted by a scan meridian instruction device, the cutting area is scanned in accordance with the instruction, The machining path of the tool that cuts the workpiece is calculated as NC data.

In addition, the output device outputs the NC data (7. The storage device stores the data necessary for processing the workpiece, the scan meridian instruction curve, and the NC data, and the display device outputs the route scanned by the central processing unit. Display as the machining meridian of the tool.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 (2) is a configuration diagram of an automatic progeraping device according to the present invention. In FIG. 1, parts that have the same functions as those in FIG. .(6) is a scan route instruction curve input device for inputting a scan route instruction curve C that indicates a route to be scanned by the CPU f21, and (7) is a scan route instruction curve input device for inputting a scan route instruction curve C that indicates a route to be scanned by the CPU f21. 2+ is a scan route indicating device that indicates the route to be scanned.

Next, the operation of the automatic programming device according to the present invention will be explained with reference to FIGS. 2 and 3. In addition, Figure 2 (,) shows the appearance of the workpiece before cutting.
FIG. 2(b) shows the shape of the region to be cut, that is, the shape of the cutting region, and FIG. 2(c) shows the appearance of the workpiece after cutting. Further, FIG. 3 is -1tj-char 1- showing the operation of the automatic programming device according to the present invention.

First, from the input device (1), the shape of the cutting area shown in FIG.
When data regarding the depth, etc., and a scan route indication curve indicating the track to be scanned (step 31) are input from the scan route indication curve input bag M(6), the CPU (2+) inputs data on the depth, etc. 21 constructs the shape data to be cut based on the input data (Step 32), and the storage device stores this together with the scan route instruction curve. Note that the CPU (21) constructs the shape data to be cut based on the input data. Based on the data, the cutting area of the workpiece is developed in the two-dimensional coordinate space of the CPU (2).Next, when an appropriate instruction is given by the operator, the scanning path indicating device (7) moves to the starting point of the specified curve. The CPU 21 instructs the normal line of the specified curve passing through as a path to scan the processing area of the workpiece (step 33),
The CPU (2+) scans in the direction indicated by the instruction curve, that is, in the normal direction of the instruction curve (step 33), and determines whether the scanned point in the coordinate space is within the cutting area (step 34). ).When the scanned point is within the cutting area, as shown in Fig. 4, the point is displayed on the display device (4) as indicating the machining path of the machining tool for machining the workpiece. (Step 35), continue scanning.If the scanned point is not within the cutting area, it is determined whether or not the recognition of the cutting area has been completed (Step 36), and if not, the scanning path is instructed. The parameters of the curve are changed, that is, the position of the normal line is changed to change the path that the CPU (2+) should scan (step 33), and the scan is continued.

In addition, scan route instruction curve input bag Ji! 7 (61 and the 411 function of the scan path direction device (7) may be implemented as a subroutine of the program).

〔Effect of the invention〕

As explained above, according to the present invention, the central processing unit scans the cutting area of the workpiece developed in the two-dimensional coordinate space, and determines the machining meridian of the tool that cuts the workpiece.
When calculating as C data, by instructing the central processing unit the path to be scanned, it is possible to accurately recognize the shape of the cutting area of the workpiece, no matter what shape it is.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an automatic programming device according to the present invention, FIG. 2 is an explanatory diagram showing a workpiece and its cutting area for which NC data is created by the automatic programming device according to the present invention, and FIG. 3 is a diagram of the automatic programming device according to the present invention. Flowchart 1 to explain the operation of the automatic programming device according to the invention, FIG. 4 is a display diagram of the machining path displayed on the display device of the automatic programming device according to the present invention, and FIG. The configuration diagram, Figure 6, shows the workpiece and its cutting for which NC data is created by a conventional automatic programming device.
FIG. 7 is a flowchart explaining the operation of the conventional automatic programming device, FIG. 8 is a display diagram of the machining line displayed on the display device of the conventional automatic programming device, and FIG. FIG. 2 is a display diagram of a workpiece for which NC data is created by an automatic programming device and a processing line displayed on a corresponding display device. In the figure, 1 is an input device, 2 is a central processing unit, 3 is a storage device, 4 is a display device, 5 is an output device, 6 is a scan route instruction curve input device, and 7 is a scan route instruction device. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (3)

[Claims] (1) It has an input device for inputting data necessary for processing the workpiece, and a two-dimensional coordinate space of a predetermined size, and the workpiece is inputted into the two-dimensional coordinate space based on the input data. A central processing unit that develops a cutting area of a workpiece and scans the two-dimensional coordinate space to calculate a machining path of a tool that cuts the workpiece as NC data; and an output device that outputs the NC data. a scan route instruction curve input device for inputting a scan route instruction curve that indicates a route that the central processing unit should scan based on the input scan route instruction curve; A scan route indicating device for instructing a route, a storage device for storing data necessary for processing the workpiece, the scan route indicating curve and the NC data, and the central processing unit An automatic programming device comprising: a display device that displays a scanned path as a machining path of the tool. (2) The automatic programming device according to claim 1, wherein the data necessary for machining the workpiece is various data of curves representing the machining shape of the workpiece, the machining method, and the cutting area to be cut. . (3) The path to be scanned by the central processing unit is in the normal direction of the scan path instruction curve.
Automatic programming device as described in Section.