JPH05324040A - Numerical controller - Google Patents

Abstract

PURPOSE:To perform machining simulation by the numerical controller by displaying plural parts of a work on the display screen of the numerical controller and individually moving those parts. CONSTITUTION:The numerical controller with a graphic display means 3 is equipped with a multi-coordinate-system display means 4 which composes the display screen 2 of plural planes, sets coordinate systems for those planes, and displays the respective parts of the work by the respective coordinate systems, a coordinate system table 6 wherein display positions and ranges on the display screen are set as to those set coordinate systems, and a work moving means 5 which individually moves the planes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic display means for displaying a movement trajectory of a tool of a machine tool on a display screen, more specifically, a display by a plurality of coordinate systems in the graphic screen, and processing by another numerical control device. The work being displayed,
Also, the present invention relates to a numerical control device provided with a graphic display means capable of separately moving works displayed on these graphic screens.

[0002]

2. Description of the Related Art A numerical control device having a graphic display function (hereinafter referred to as a numerical control device) has a display function for checking machining. FIG. 13 is a display example of a display screen in a conventional numerical control device. The side surface shape of the work on the XY plane is 30, the front shape of the work on the XY plane is 31, and the display coordinate axes such as XY and XZ are 32.
And In the conventional numerical control device, the side surface shape of the work 3
0 and the front shape 31 of the work are simulated on the same display screen 2 in this way. FIG. 14 is a main block diagram of a conventional numerical control device, which is composed of a display screen 2, a graphic display means 3, a data input key 7, a data conversion means 34, and a numerical control device body 33.

FIG. 15 is a flowchart of the operation of the data conversion means 34 in the conventional numerical control apparatus. According to this, the coordinate axes 32, XY, displayed on the display screen 2,
Set another such as X-Z with the input key 7 (S20
0) Next, the data of the work is input (S201).
Here, the type of the displayed coordinate axis 32 is determined (S20
2) Convert the input data corresponding to the coordinate axis 32 (S202 to S205). Next, the display position is obtained from the coordinate origin and the coordinate axis on the display screen 2 (S206),
These pieces of information are transmitted to the graphic display means 3 (S
207). Then, it is confirmed that the processes of S206 to S207 have been completed for all the coordinate axes 32 displayed on the display screen 2 (S208), and the series of operations is completed.

FIG. 16 shows another display example of the display screen of the conventional numerical control apparatus. This is a display example in which a part (dotted line part) of the work 14 which is the basis of (a) is enlarged and shown as in (b). FIG. 17 is a main block diagram of a conventional numerical control device having such an enlarged display function, which includes a display screen 2, a graphic display means 3, a data input key 7, a data enlargement conversion means 43, and a numerical control device body. It is composed of 42.

FIG. 18 is a flow chart of the operation of the data expansion conversion means 43. The data enlargement conversion means 43 receives data for setting the display area (the dotted line portion in FIG. 16A) for displaying the work 14 on the screen from the data input key 7 (S210), and enlarges the work 14 from this display area. Is calculated (S211). Next, the display area is the display screen 2.
The display origin of the work 14 on the display screen 2 is shifted so as to enter (S212). Then, the display position on the display screen 2 is obtained, and these pieces of information are transmitted to the graphic display means 3.

As described above, according to the conventional numerical control device, it is possible to grasp the entire image of the workpiece to be machined or to enlarge (partially simulate) a part of the work (processing simulation) to know one point in detail.

[0007]

However, in the conventional numerical control device, the work 14 displayed on the display screen 2 is not drawn on the screen, and the position of the tool for machining the work 14 is changed. It is displayed by plotting and connecting the plotted points. Therefore, if there is a portion to be enlarged in the work, it is necessary to set the area to be enlarged first and then display it. For example, if there are a plurality of points in the work 14 that the user wants to know in detail and they are at distant positions, if all the points that the user wants to know are to be displayed on the display screen 2, the work 14 must be displayed on the display screen 2 too large. Because you can't
I had to magnify separately for the number of points.

Further, when there are a plurality of parts which must have the same shape in the work 14, if it is known that one part is correct, the other parts are compared to determine whether they are correct. be able to. However, in the conventional numerical control device, when the portions to be compared are displayed together on the display screen 2, if the portions to be compared are apart from each other on the screen, the work 14 cannot be enlarged so much.
Further, since it is not possible to draw the portion to be compared, the comparison on the display screen 2 tends to be ambiguous. Therefore, the checking of the machining program has to be performed by comparing the actually machined workpieces, and it has been necessary to carry out trial cutting.

The present invention has been made to solve the above problems, and displays a plurality of parts of a work on a display screen of a numerical controller, and moves these parts separately. In addition, it is an object of the present invention to provide a numerical control device that facilitates comparison of tool loci by display (machining simulation) on the numerical control device.

[0010]

According to a first aspect of the present invention, in a numerical control device having a graphic display means for displaying a movement trajectory of a tool on a display screen, the display screen is composed of a plurality of planes, and these planes are formed on these planes. Multiple coordinate system display means for setting the coordinate system and displaying each part of the work by each coordinate system, coordinate system specifying means for setting the display position and range area on the display screen for the set coordinate system, and the plane. And a work moving means that moves separately.

According to a second aspect of the present invention, in a numerical control device having a graphic display means for displaying a movement trajectory of a tool on a display screen, the display screen is composed of a plurality of planes, and coordinate systems are set on these planes. Multiple coordinate system display means for displaying each part of the work by the coordinate system, the coordinate system specifying means for setting the display position and range on the display screen for the set coordinate system, and the work moving means for moving the plane separately. And work information communication means for transmitting and receiving data relating to the work to and from another numerical control device, and work information display means for displaying the data input to the work information communication means on a display screen.

[0012]

In the numerical controller according to the present invention, a plurality of coordinate systems are positioned on a plane forming a display screen, and when a machining simulation passes through the coordinate system, the passing portion of the machining simulation is displayed on the display screen. The drawing is performed in the area located at, and a plurality of work portions are simultaneously displayed on the display screen. At this time, each coordinate system is moved separately by the work moving means, and the works can be overlapped.

[0013]

EXAMPLES Example 1. FIG. 1 is a main block diagram of a numerical controller according to an embodiment of the present invention, and FIG. 2 is an external view of the numerical controller. This numerical controller is a numerical controller main body 1
The display screen 2, the graphic display means 3, the plural coordinate system display means 4, the work moving means 5, the data input key 7,
Coordinate system table 6, work information communication means 9, work information display means 10, communication cable 1 with different numerical control device
1 and so on. Reference numeral 1a is a numerical controller main body provided with each means similar to that of the numerical controller main body 1.

3 and 4 are display diagrams on the display screen of the numerical controller according to the present invention. FIG. 4 shows a coordinate system table 6 in which a desired data is set for a plurality of parts of the work shown in FIG. It is enlarged and displayed at the same time on the display screen. 3 and 4, 14 is the whole work, 14a is a part of the work, 15 is a coordinate system corresponding to each part 14a of the work, 16 is a coordinate system number, 17 is a coordinate axis, 18 is a coordinate origin, and 19 is a display. The origin, 20 indicates the display area of the coordinate system 15. In addition to the normal keys, the data input key 7 includes arrow keys for moving the coordinate system 15 displayed on the display screen 2 (for example, “→”, “←”, “↓”,
"↑"), the coordinate origin 18 of the coordinate system 15 and the display origin 19
Setting keys for setting (for example, "X", "Y", "Z") and the like are provided.

The coordinate system table 6 provided in the numerical controller is a memory for setting data for displaying each coordinate system 15 on the display screen 2. There are as many coordinate system tables 6 as the number of planes forming the display screen 2, and the data thereof mainly include the following. (A) Usage state (b) Display plane number (also called coordinate system number 16 1-
(Displayed by an integer of n) (c) Display origin 19 (Ax, Ay) (d) Coordinate origin 18 (Bx, By) (e) Work origin 25 (Cx, Cy) (f) Coordinate area of coordinate system 15 (X , Y) FIG. 5 shows the relationship between these data and the display screen 2. In FIG. 5, the hatched portion is the portion displayed as one coordinate system.

The display screen 2 of the numerical controller comprises a plane. FIG. 6 is an explanatory diagram of the planes that make up the display screen, where 24 is the plane that makes up the entire display screen,
21 is a first plane, 22 is a second plane, and 23 is a third plane. The number of planes varies depending on the display screen 2. In addition, a plane has a size of a display screen with a group of dots having a depth of 1, and normally it is possible to set different colors for each plane (for example,
(Red, yellow, blue, etc.), the colors displayed on the display screen 2 are determined by the superposition of planes. FIG. 7 shows an example in which only the second plane 22 is moved from the three planes in FIG.

Next, the control operation relating to the present invention of the numerical controller according to the present embodiment will be described with reference to the flow charts of FIGS.

FIG. 8 is a flow chart of the operation of the plural coordinate system display means 4. The plural coordinate system display means 4 first determines whether or not to newly display the coordinates (S101), and when displaying the new coordinates, performs the following operation. Confirm that the number of coordinate systems 15 displayed on the front screen 2 is smaller than the number of planes the display screen 2 has (S10).
2) Receive the coordinate origin 18 of the workpiece 14 and the coordinate area of the coordinate system 15 from the data input key 7 (S
103), and further, the display origin 19 in the display screen 2 of the designated coordinate system 15 is received from the data input key 7 (S1).
04). Next, a free plane number of the display screen 2 is assigned to the designated coordinate system 15 (S105). The plane number is the number of the coordinate system 15, and the coordinate origin 1 required when displaying the coordinate system 15 (processing simulation)
8, which is an identification number of the coordinate system table 6 that stores data such as the display origin 19 and is also called a coordinate system number 16. Then, the coordinate axis 17 whose origin is the display origin 19 is displayed on the display screen 2 (S106). The display length in this case indicates the size of the coordinate area of the coordinate system 15 in both the vertical and horizontal directions.
The coordinate system number 16 is displayed below the displayed coordinate axis 17.

On the other hand, when the coordinates are not newly displayed in S101, the work 14 is displayed in the already set coordinate system 15, so that the coordinate origin 18 is displayed on the display origin 19 of the display screen 2.
Set the work origin so that can be displayed. Reference numeral 25 in FIG. 5 represents the workpiece origin. Work origin 25 is work 1
The coordinates are the origin when the entire screen 4 is displayed on the display screen 2. By dividing the workpiece origin 25, the coordinate origin 18 is assigned to the display origin 19. That is, S
When it is determined that the coordinates are not newly displayed in 101,
In the coordinate system 15 that has already been initialized in S102 to S106, the work 1 is processed in the next S107 to S110.
4 is displayed.

The work origin 25 is made to match the set value of the coordinate system table 6 (S107), and the coordinate area to be displayed is clipped so that it cannot be drawn in a portion other than the display area (S108). Next, display is performed using the plane of the number designated in the coordinate system table 6 (S109). At this time, in order not to affect other planes, a plane mask is applied (only the relevant plane can access the memory). And S10
After confirming that the operations from 7 to S109 have been performed for all the coordinate systems 15 used (S110), the display is terminated. It should be noted that the drawing process is not performed on the plane whose usage state is clear.

FIG. 9 is a flow chart of the operation of the work moving means 5. The work moving means 5 receives, from the data input key 7, data designating the coordinate system 15 that moves on the display screen 2 and data designating the moving position (S12).
0), the work origin 25 and the display origin 19 are reset in the coordinate system table 6 from these values (S121). Next, the coordinate area of the coordinate system 15 is copied to a memory (not shown) secured as a stack (S122), and the plane in the display screen 2 on which the coordinate system 15 is displayed is cleared (S122).
123). Then, only the designated plane portion of the data saved in the stack area is copied to the designated movement position (S124), and the movement of the coordinate system 15 is completed.

Example 2. In the second embodiment, display (processing simulation) data obtained from another numerical control device is
It is intended to process the data as one coordinate system described in the first embodiment.

FIG. 12 is a display example of a work using the work information communication means and the work information display means of the numerical controller of FIG. In the figure, 2a is a display screen of a numerical control device for displaying, 2b is a display screen of a numerical control device for outputting data for machining simulation, and 28 is a workpiece which is being processed on the side of the numerical controller for data output. 15 to 19 are the same as or equivalent to those having the same reference numerals described in the first embodiment. Next, the work information communication unit 9 and the work information display unit 10, which function to perform the display as shown in FIG. 12, will be described.

FIG. 10 is a flow chart showing the operation of the work information communication means 9. The work information communication unit 9 first determines whether the work information communication unit 9 is for display or for data output (S130). The work information communication means 9
If is for display, the coordinate origin 18 of which the work 28 is to be displayed and the coordinate area of the coordinate system 15 are received from the data input key 7 (S131), and the designated coordinate system 15
The display origin of which position is to be displayed on the display screen 2 is received from the data input key 7 (S132). Next, an empty plane number of the display screen 2 is assigned to the designated coordinate system 15 (S133). At this time, a symbol indicating the numerical controller that outputs the data is also assigned, and this number and the symbol are stored in the coordinate system table 6. This number and symbol are used for the coordinate origin 18, which is required when the coordinate system 15 displays a workpiece.
This is an identification number of the coordinate system table 6 that stores data such as the display origin 19 and is called a coordinate system number 16.
Then, the coordinate axis 17 whose origin is the display origin 19 is displayed on the display screen 2 (S134). The display length in this case indicates the size of the area of the coordinate system 15 in both the vertical and horizontal directions. Below the displayed coordinate axis 17, the coordinate system number 16 is displayed.

Next, the display numerical control device issues a display data output request to the data output numerical control device and receives predetermined data (S135 to S136). And
The data received from the data output numerical control device is sent to the work information display means 10 (S137). When the transmission of all data is completed, a data output end request is issued to the data output numerical control device (S139).

On the other hand, if the work information communication means 9 is not for display in step 130, that is, if the work information communication means 9 is on the side of the data output numerical control device, the data from the display numerical control device is displayed. After waiting for the output request, the requested processing data is transmitted to the display numerical control device (S140 to S142).

FIG. 11 is a flow chart showing the operation of the work information display means. The work information display means 10 receives the predetermined data from the work information communication means 9 (S
150), the display position on the screen is obtained from the coordinate origin 18 and the display origin 19, and the work is displayed on the designated plane (S151). This display operation is the same as the processing of S107 to S110 of FIG. 8 of the first embodiment. After that, the reception of the display end signal from the work information communication unit 9 is confirmed (S152), and the display on the plane is ended (S15).
3).

The operations of the plural coordinate system display means 4, the work moving means 5, the work information communication means 9 and the work information display means 10 shown in the flow charts in this embodiment are programmed in the numerical controller main body 1 in advance. It is executed by keeping it. Further, as described above, when a plurality of coordinate systems are displayed on the screen, the display plane is limited due to the relationship of movement of the coordinate systems, but when not using the multiple coordinate system display means 4, the work is a plurality of planes. Are displayed in combination.

[0029]

According to the first aspect of the present invention, the display (machining simulation) is performed on the display screen of the numerical control device to display the actual tool trajectory simultaneously in a plurality of different coordinate systems, or to display each display. Since it can be moved separately, it is possible to compare work shapes without trial cutting the work as in the past, and because multiple fine shapes can be seen at once, it is not necessary to display it again and again. Effects such as saving can be obtained.

According to the second aspect of the invention, when machining workpieces of the same shape by different numerical control devices, it is possible to compare the shapes on the display screen of any of the numerical control devices.

[Brief description of drawings]

FIG. 1 is a main block diagram of a numerical controller according to an embodiment of the present invention.

FIG. 2 is an external view of a numerical controller according to an embodiment of the present invention.

FIG. 3 is a display diagram on a display screen of the numerical controller according to the present invention.

FIG. 4 is a display diagram on a display screen of the numerical controller according to the present invention.

FIG. 5 is a relationship diagram between data of a coordinate system table and a display screen.

FIG. 6 is an explanatory diagram of planes that form a display screen.

FIG. 7 is an explanatory diagram of work movement on the display screen.

FIG. 8 is a flowchart of the operation of the multiple coordinate system display means.

FIG. 9 is a flowchart of the operation of the work moving means.

FIG. 10 is a flowchart of the operation of the work information communication unit.

FIG. 11 is a flowchart of the operation of the work information display means.

FIG. 12 is an explanatory diagram of work display between the numerical control devices.

FIG. 13 is a display diagram of a display screen of a conventional numerical control device.

FIG. 14 is a main block diagram of a conventional numerical control device.

FIG. 15 is a flowchart of the operation of the data conversion means.

FIG. 16 is a display diagram of a display screen of a conventional numerical control device.

FIG. 17 is a main block diagram of a numerical control device having an enlarged display function.

FIG. 18 is a flowchart of the operation of the data expansion conversion unit.

[Explanation of symbols]

 1, 1a Numerical control device main body 2 Display screen 3 Graphic display means 4 Multiple coordinate system display means 5 Work moving means 6 Coordinate system table 7 Data input key 9 Work information communication means 10 Work information display means 14 Work 15 Coordinate system 16 Coordinate system No. 17 Coordinate axis 18 Coordinate origin 19 Display origin 20 Display area 25 Work origin

Claims (2)

[Claims] 1. A numerical control device having a graphic display means for displaying a movement path of a tool on a display screen, wherein the display screen is composed of a plurality of planes, and coordinate systems are set on these planes. A plurality of coordinate system display means for displaying each part of the work, a coordinate system specifying means for setting the display position and range on the display screen for the set coordinate system, and a work moving means for moving the plane separately. Numerical control device characterized by having. 2. A numerical control device having a graphic display means for displaying a movement trajectory of a tool on a display screen, wherein the display screen is composed of a plurality of planes, and coordinate systems are set on these planes. By means of a plurality of coordinate system display means for displaying each part of the work, a coordinate system specifying means for setting the display position and range on the display screen for the set coordinate system, and a work moving means for moving the plane separately, Work information communication means for transmitting and receiving display data regarding a work to and from another numerical control device, and work information display means for displaying the data input to the work information communication means on the display screen are provided. Numerical control device.