JPH0272413A - Program forming device for numeral controller - Google Patents

Abstract

PURPOSE:To produce a working program of a numeral controller by displaying a form data file on a display device for input of the information proper to the working and therefore inputting directly the information on the form of a work designed by a CAD as the working form information. CONSTITUTION:The information on a work designed by a CAD device 1 is converted into the drawing data 2 described in a prescribed data format. The data 2 is transferred to a program producer 3 and displayed on a CRT 4. An operator refers to the screen of the CRT 4 and select the types of working such as the hole working, the line working, the surface working, etc., via a keyboard 5 and a mouse 6. Then the operator points a working part on a working drawing and inputs the working information on the roughness, the machining allowance, etc., in reply to the questions given from the producer 3. In such a manner, a working program is produced with input of the working information proper to each working. Then the time required for production of the working program is shortened and also the input mistakes are decreased.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a programming device that generates a machining program for a numerical control device (hereinafter abbreviated as No.) through interactive input based on original drawing information generated by CAD. It is.

[Conventional technology]

First? fgJ is a diagram illustrating a configuration for creating a NO machining program using a conventional program creation device.

In the figure, (1) is the CAD device electrical manufacturing 9 that designs the workpiece.
) is a drawing (hard copy) of the workpiece designed with the CAD device (1),! 3) is the No. 1 machining program creation device.

(4) is a CRT that displays machining shapes, interactive questions, etc.
.

(5) is a keyboard for inputting numerical data in an interactive format, +7)! 81 and 81 are respectively created and used as media for inputting the programs offline.

Next, the operation will be explained. Information about the workpiece designed with the CAD device (1) is made into a drawing (9) using a plotter or the like. The operator is CRTF41. Using the keyboard (5) as a man-machine interface, input the information in drawing (9) into the program creation device in an interactive manner to create a machining program.

Next, the procedure for creating a program will be explained along the flowchart of FIG. 12.

The operator first selects the type of machining from among hole machining and line machining, one-sided machining (+01). If you select hole machining and then click (
+02). Select the type of hole processing such as drilling, reaming, or tapping (+05). After that, according to the guidance instructions from the program electronics manufacturer, necessary information such as hole diameter and depth is input in a question-and-answer format (+04).

Finally, the shape pattern for hole machining is defined (+05).

For example, the light-consolidation ratio in which holes are drilled in a grid pattern in a certain area is defined as a specified number of holes to be drilled on an arc.

The work up to this point completes the creation of machining information (machining program) such as the coordinate values for hole machining and the depth of the hole. Then, display the processed shape on the CRT (+06) and repeat the above-mentioned process (+07). If line machining or surface machining is selected (+Oa), select a more detailed machining method (e.g. surface milling, pocket machining, etc. +09) to create the machining shape using straight lines and circular arcs (-2 is a circle). Define (+10
). After that, following guidance from the programming device, information necessary for machining, such as machining allowance and notch number, is entered in a question-and-answer format. As a result, the machining shape for single-sided line machining is described using circular arc and straight line elements, and the coordinate values of these elements such as the start point, end point, and center point of the circle are not determined. Creation of machining information (machining program) is completed along with the information.

FIG. 13 shows an example of the configuration of a machining program for hole machining, and FIG. 14 shows an example of the configuration of a machining program for surface machining.

When this machining program is input to No., it is combined with information on the tools installed on the machine tool, divided into 1 time blocks, and output to the machine tool as a t movement command.

Processing is performed.

[Problems that Kaimei attempts to solve]

Since the conventional program creation apparatus is configured as described above, even if a workpiece is designed using CAD, it is necessary to convert the data into a drawing (drafting).

- In the first step, the operator has to input the machining shape again while looking at the drawing and calculating the coordinates of intersections of straight lines, circular arcs, etc., which takes time and causes problems such as errors in inputting the t number (direction). was there.

This invention was made to solve the above-mentioned problems, and it inputs information on the shape of the workpiece designed with CAD directly onto the processing shape information.

An object of the present invention is to obtain a program creation device capable of creating a machining program.

[Means to solve the problem]

The program creation device according to the present invention directly inputs machining drawing information of a workpiece created with a CAD device as a shape data file, displays the shape data file on a display, and allows an operator to input machining-specific information. In particular, it has made it possible to create processing programs for uniform numerical control electrical manufacturing.

[Effect]

In this invention, the drawing information designed with CAD is displayed on the display of the program creation device, and the operator inputs processing-specific information from the pointing device while looking at the drawing on the screen, and answers the question button from the program creation device. Create a machining program.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, fil is a CAD device that designs the workpiece.

(2) is the drawing data designed with the CAD device fl), (
3) is NO's machining program creation system [, +41 is the machining drawing.

C! Displays interactive questions, etc. RT, +5+ is an interactive keyboard, and the keyboard is for inputting data (6)
is the figure displayed on the CRT, the button is the mouse for commanding the menu, +71 (83 is the floppy disk and cassette magnetic tape used as a medium for inputting the created program into NO offline).

Next, the operation will be explained. Information on the workpiece designed with the CAD device (1) is stored in IGES (Engineering Grain).
phics Ecchange 5specificat
ion standard: ANS Engineering Y14.26M) Drawing data described in data format (2) is converted and output. This drawing data is communicated! ! Next, the data is transferred to the program creation device N+3+ via a medium such as a floppy magnetic tape and displayed on the CRT+41. The operator presses the keyboard (5) while looking at the nine drawings displayed.

Input the processing method and processing attributes using the mouse (6).

Next, the procedure for creating a program will be explained along the flowchart of FIG. First, display the machining drawing on the CR7 screen (step 20. Next, select the type of machining such as hole machining line machining, single-side machining, etc. 202). Indicate the machining part on the machining drawing with the pointing device (mouse) 205) . Thereafter, answers to questions from the program creation device and machining information such as roughness and thickness are input (204). At this time, if the processing information is displayed on the drawing, input can be performed by instructing the display with the mouse. If the processing information cannot be obtained from one side, the operator can also input from the keyboard.

If you input all the machining shapes in the machining drawing (205)
.

Program creation ends.

Now, the elements of the engineering GE8 data are identified by element numbers, and are geometric elements 2 notation elements, structural elements, and relational elements.

It is roughly divided into area structure elements. Arcs are geometric elements.

There are 20 types including line segments, compound curve significant point sequences, etc. In the program creation device, when a figure is designated with a pointing device (mouse), the coordinate data of the corresponding next geometric element is extracted from the engineering GES data file of the drawing. In IGK8, for example, a line segment has coordinate data of the line's start point and end point as parameters, and an arc has the depth of the defined space, the center point of the arc, the coordinate data of the start point and end point of the arc, and from these coordinate data the machine tool has. X, Y of the hole machining shape that matches the coordinate system
The coordinates, radius R1, rotation angle θ, etc. are calculated.

Similarly, when machining information such as roughness on a drawing is specified using a pointing device (mouse) in a program creation device, the character string data of the corresponding nine notation elements is extracted from the drawing data file, converted to a numerical value, and the machining information is Data.

Next, a specific example of the screen will be shown and explained.

FIG. 3 shows the next state by displaying the engineering GE8 data of nine drawings written in the third drawing method on the screen. α1 is the operation menu, 1I
H3 is a message to the operator. FIG. 4 is a cutout of only the top view of FIG. 3.

Next, the case of performing pocket machining, which is a type of surface machining, will be explained using FIG. 4. In Figure 4.

Mouth 1 is a menu display for operations, and ! I+1, +12 and α are messages to the operator.)
R4 is an indication of the scale of the drawing, and the remaining parts are notation elements such as figures and dimensions for hole processing, which are displayed based on the IGBS data. First, the drawing origin (DRAFT)
Menu α to set the OR engineering G engineering N) (S
ET), move the mouse, and use the orthogonal cursor to specify the origin + Ill position of the drawing.

Select pocket machining (POCKI!!T) from the menu 0'6 of the machining unit that will be displayed next (see Figure 5).
.

Specify pocket machining from the pocket machining menu 0s. Next, when the designation of the type of processing, which will be explained using FIG. 6, is completed, items to be input according to the processing are displayed in the message +I11 section. First, specify the outer shape of the workpiece using the mouse.

In this example, the square portion is the outer shape. Next, use the mouse to specify the inner shape to be processed. In this case, the portion connected by four circular arcs is the inner shape. Depth to be processed next (D
IPTH) 20 (Unit: Length) Amount of cut per time (OUT)
Z) 8 (unit: ms) Bottom finishing assembly (BTM R
OUGHNIC8,S) Finish roughness of Q surface (WALL
ROUGHNESS).

This input can be performed by the operator using the keyboard or by specifying the numbers (direction and roughness signals (v), etc.) on the screen using the mouse.

The above operations complete the operations necessary to create a pocket machining program for this figure. With this series of inputs, the 14th
The machining program shown in the figure is completed.

The code for pocket chevron machining is entered in the surface machining part of Fig. 14, and the machining depth is 20. Depth of cut is 8 for machining allowance.
．． Code 4, which corresponds to the accuracy of W, is input to the roughness (bottom surface) and (@ surface). Furthermore, the shape elements of the line segment 2 arc are numbered according to the specific outer shape and inner shape specified by the mouse, and if it is a straight line, the xm mark of the starting point, and if the Y coordinate is 1 circle (or arc), the radius R and the center are numbered. The X and Y coordinates of the point are specified with the mouse, and based on the origin, they are calculated and input from the engineering GK8 data corresponding to each shape element.

Therefore, for this pocket machining, there is only one machining information part, but the shape information part is defined by a total of eight shapes, four with straight lines on the outside and four with arcs on the inside.

By the way, the above-mentioned embodiment can be applied to a simple figure like the one shown in FIG.
If ball drilling is added to the diagram and the next processing shape is used, there is a problem that a part of the contour of the pocket processing is missing in the 9th part where the pocket processing and the hole drilling overlap, making it impossible to perform proper pocket processing. In order to overcome this problem, when creating a drawing using CAD, it is necessary to leave in the drawing a part of the circular arc that should not originally be drawn, unlike in a normal drawing.

In such a case, a configuration as shown in FIG. 7 may be used. That is, display the processing drawing on the CR7 screen (5
0su. Next, select the type of machining to be performed from hole machining and @ machining two-sided machining, and then select surface machining,
Pocket machining and when Select the specific type of machining (
502). Next, use the mouse to specify the shape to be processed (503), and the processed shape will be defined by a combination of a circle (arc) and a straight line for the north, and that part will change color and appear on the CR7 screen. will be displayed. If the machining shape defined here is an appropriate machining shape intended by the operator (504), machining attributes such as roughness and machining allowance are input using an input device. ). If the shape is not suitable for machining (304), use the mouse again to indicate the part of the shape whose definition is to be changed (507), and transform the incomplete shape that is not suitable for machining into a shape that is suitable for machining (507). 3os) g. Next, the redefined machining shape is displayed on the CRT screen to confirm that the machining shape has been transformed into the desired shape.

Next, details of the operation will be explained. The programming of the machining shape shown in FIG. 8 will be explained as an example. The machining shape in Figure 8 is the pocket machining shown in Figure 9 ta+ and the
This is a combination of the two holes shown in Figure (1)). However, the final processed shape is shown in Figure 9.
As shown in Figure 1, a part of the outline of the pocket machining is removed by the hole machining, resulting in a north shape.

Therefore, in response to the question from the program creation unit in the flowchart in Figure 7, ``Have you defined an appropriate machining shape?'', the operator inputs rNOJ and moves arcs A and B in Figure 10 with the mouse. By instructing to connect two arcs as a change content, arc A1, arc C1, and arc B are recognized as one arc, and the portion of arc C is also displayed on the CR7 screen.

Next, internal data within the program creation device will be explained.

In the internal data, the shape in Figure 10 is initially circular arc A + circular arc D.
It is recognized as L ten circular arc B or circular arc A ten circular arc DR ten circular arc B. Therefore, the machining program is in the format shown in Figure 14: (machining information for pocket machining) + (shape information for arc A) + (shape information for arc DL) + (shape information for arc B), i* is (
Processing information for pocket processing) + (shape information for circular arc) + (
shape information of the circular arc DR)+(shape information of the circular arc B). By giving an instruction to connect arc A and arc B, arc A1, arc C1, and arc B are internally processed as one arc, and the machining program is (machining information for pocket machining) + (shape information for arc ACH) The format is changed to .

As mentioned above, according to the operator's instructions, a more efficient machining program can be created by partially revising the drawing information given by the CAD system and re-recognizing the shape suitable for machining, taking into account the details of the machining. can.

In each of the above embodiments, the machining shape data is explained as a machining program, and t may be a program creation device that decomposes the machining shape data to the level of a part program that describes the movement of the cutter position. It has the same effect as the example.

[Embodiments of the invention]

As described above, according to this invention, f:! The machining drawing information of the workpiece is directly input as a shape data file for the machining shape designed by the AD device, and the shape data file is displayed on the display, and the operator inputs machining information specific to the machining and starts the machining program. Since it is configured to create a machining program, the time required to create a machining program is shortened, and input errors by the operator are reduced. In addition, according to this invention, when multiple machining operations are combined, a function can be added to create a machining program to adjust the machining shape to a suitable shape for the machining process. The program has an effect.

[Brief explanation of the drawing]

FIGS. 1 to 6 are diagrams related to one embodiment of the present invention, and the first
The figure shows the hardware configuration, Figure 2 is a detailed flowchart explaining the operation, Figure 3 is a diagram showing the fc screen displaying the workpiece displayed by trigonometry, and the fourth layer is the 3rd layer. Figure 5 shows an example of the menu for selecting the type of processing; Figure 6 shows the drawing menu and message changed by operation;
7 to 10 are diagrams relating to other embodiments of the present invention, and FIG. 7 is a flowchart explaining the operation. FIG. 8 is a diagram showing a screen displaying an example of a machining shape for which a machining program cannot be created in the first embodiment. The 9th layer is a diagram showing an example of classifying the machining shape in Figure 8 into pocket machining, hole machining, and a combination of both. FIG. 14 is a diagram related to a conventional example, and FIG. 11 is a diagram showing the hardware configuration.
Figure 12 is a flowchart with holes explaining the operation.
Figure 3 is a diagram showing an example of a machining program for hole machining.
FIG. 4 is a diagram showing an example of a machining program for surface machining. Note that the same reference numerals in the figures indicate the same or equivalent parts. fl) is the CAD device, (2) is the drawing data, (3) is the program creation device fl, l! 51 is the keyboard, (6)
is a mouse. Figure 1 (Figure 1 Figure Figure Figure Figure Figure Figure 1) Z. Figure 13 Figure 14

Claims (3)

[Claims] (1) In a program creation device for a numerical control device equipped with a display device and pointing devices such as a keyboard and a mouse as a man-machine interface, processing drawing information of a workpiece created with a CAD device is directly input as a shape data file. A program creation device for a numerical control device, characterized in that the shape data file is displayed on a display, and an operator can create a machining program for the numerical control device by inputting information specific to machining. (2) In a program creation device for a numerical control device equipped with a display, a keyboard, a pointing device such as a mouse, etc. as a man-machine interface, the drawing information of a workpiece created with a CAD device is directly input as a shape data file, and the In addition to displaying the shape data file on the display and allowing the operator to input the shape of the workpiece by indicating the shape elements (lines, circles, arcs), etc. using the pointing device, surface accuracy etc. A program creation device for a numerical control device, characterized in that attribute information can also be input by pointing a corresponding display on a display device with a pointing device. (3) In a machining program creation device for a numerical control device equipped with a display and pointing devices such as a keyboard and a mouse as a man-machine interface,
The machining drawing information of the workpiece created with the AD device is directly input as a shape data file, and the shape data file is displayed on the display so that the operator can convert incomplete graphical elements into complete shapes by considering the machining procedure. A program creation device for a numerical control device, characterized in that a machining program for the numerical control device can be created by giving instructions to be recognized as elements.