JPH0379146B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a method for confirming a scanning area in a scanning control device.

(Technical background of the invention and its problems) A copying control device that causes a copying device to copy a model shape and causes a machine tool to process a workpiece according to the copied shape, uses a program to perform multiple copying processes. Control devices are becoming widely used.

By the way, this copying program has conventionally been written using numerical data and symbols, making it difficult for anyone other than the program creator to understand which part of the model is to be copied regarding the copying area for the copying process instructed by this program. Furthermore, even the program creator cannot easily and reliably confirm this, and as shown in FIG. As shown, areas 70a, 7 to be followed
The tracing area 71a programmed for 0b,
If 71b does not match, the remaining traces 72a, 72
A mistake is made such as b or erroneous copying area 73b.
These mistakes cannot be confirmed until the actual copying operation is performed, and machining may not be possible according to the model shape, or
The disadvantage is that the program must be stopped and corrected in the middle of machining, which not only consumes a lot of time but also places a heavy burden on the operator.

(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to display a copying area commanded by a copying program on a CRT screen before copying operation in a copying control device. display on top,
The object of the present invention is to provide a scanning area confirmation method that allows the scanning area to be confirmed by visually checking this display.

(Summary of the Invention) The present invention relates to a method for confirming a copying area commanded in a copying program input to a copying control device. This scanning area confirmation method graphically displays the entire scanning area corresponding to the scanning command issued on the CRT screen for visual confirmation.

(Embodiment of the Invention) FIG. 1 is a block configuration diagram showing one means for carrying out the present invention, in which a copying program analysis/command section 2 is stored in a copying program storage section 1 as shown in FIG. It reads the copying program of the machine tool that performs copying machining, analyzes the data words commanded to this copying program, and generates a copying selection command ST such as "TBSC" shown in the figure.
“TAPR (approach command)” shown in the same figure,
Other directives such as “TTRC (Tracking Start Command)”
Separated into SO and copying mode command analysis section 3.
and the OR gate circuit 6. This copying mode command analysis section 3 receives the copying selection command ST,
Following "TBSC" shown in the figure, each command of copying mode MD, copying parameter P, and copying limit L commanded in one block of the program is read.
Here, the copying mode MD indicates the type (pattern) of the copying method: (a) manual/NTC copying (MD = 1), (b) surface reciprocating copying (MD = 2), (c)
Surface unidirectional copying (MD = 3), (d) Contour all-around copying (MD = 4), (E) Contour portion copying (MD = 5), (F) 3
Dimensional copying (MD = 6), (g) Roughing drill cycle (MD = 21), (H) Roughing milling cycle (MD =
22), (li) position measurement cycle (MD=51), and this data is stored in the copying mode storage section 40. In addition, the scanning parameter P indicates the scanning data such as scanning speed and pick feed speed, and the type of scanning area.
1. B radiation tracing area PO2 radiated from the center point PP of the radiation, right width Wr and left width in the direction perpendicular to the center line LC on both sides of the center line LC
There is a C normal scanning area PO3 having Wl, and these data are stored in the scanning parameter storage section 41. In addition, the copying limit L indicates the range of the copying area, and as shown in FIGS. 6A to C, () right side area limit Lr, () left side area limit Ll, () outer area limit Lo, ()
There is an inner area limit Li, () center line Lc, etc., and this data is stored in the copying limit storage section 42.
, and nine sets of ranges L1 to L9 can be commanded for each of the above modes.
Therefore, the copying mode command analysis section 3 analyzes the copying mode MD corresponding to each command of the copying mode MD, copying parameter P, and copying limit L that has been read.
Each data of the copying parameter P and the copying limit L is read from the storage units 40 to 42, and these data are sent to the graphic display control unit 5.
In addition to displaying on the CRT display device 50, the above
The above data is also sent to the OR gate circuit 6. The AND gate circuit 7 constantly receives the output signal of the OR gate circuit 6, and the operator checks the copying area (Fig. 3) displayed on the CRT screen and
When the copying operation execution signal SS is turned ON, the copying device 8 is commanded to perform copying operation. As is well known, the copying device 8 converts the displacement of the tip (stylus) of the tracer 80 that comes into contact with the surface of the model 81 into an analog voltage and detects it with the displacement amount detection section 84. The tracer tip 80 responds to a copying command corresponding to each copying mode commanded from the copying program analysis section upon receiving a signal.
While controlling the movement of the drive unit 83 so as to keep the amount of displacement constant, a workpiece (not shown) is machined to have the same shape as the copying area instructed for this model.

The operation of the present invention will be described below with reference to a flow chart showing the operation of the tracing area confirmation method of the present invention shown in FIG.

Before causing the copying device to perform copying operation, first check the copying operation execution signal SS to confirm the copying area commanded by the copying program.
Confirm that it is turned OFF (step S1). On the other hand, if you want to perform copying operation immediately, such as when copying a model whose copying area has already been confirmed, turn the above signal SS ON. (Step S2), then continue the copying operation. In step S1, when it is confirmed that the signal SS is in the OFF state, the copying program analysis/command section reads a copying program as shown in FIG. 4 from the copying program storage section 1 one block at a time (step S3). , it is determined whether this block is a copying selection command (step S4), and when the "TBSC" selection command is read as shown in parts A, B, and C of the same figure, the copying commanded following that block is According to each command of mode MD, copying parameter P, and copying limit L, the corresponding data is read from the copying mode storage section 40, copying parameter storage section 41, and copying limit storage section 42, and is displayed on the CRT display device via the graphic display control section 5. The copying area instructed by the copying program is displayed on the screen of 50 (step S5). Then, if the copying program continues (step S6), the above step S3
Return to , repeat the above operation for the next block, and display the entire copying area commanded during the copying program on the CRT screen. Here, in the copying program shown in Fig. 4, the copying area commanded in section A is AA shown in Fig. 5, and similarly the copying area commanded in parts B and C in Fig. 4 is AA. BB and CC are shown in FIG. 5, and FIG. 3 shows an example in which the entire copying area instructed to the copying program is displayed on the CRT screen in this way. In the figure, reference numeral 500 indicates all copying areas commanded by this copying program, and 501 indicates the contents of function keys (not shown) used for data input and correction.

The operator visually checks the copying area 500 displayed on the CRT screen in this way (step S7), and determines whether this screen is different from the copying area in which the copying operation is to be performed, as shown in FIG. 7 above. If so (step S8), use an input means such as a keyboard (not shown) to enter the copying program,
The copying parameter P, copying limit L, etc. are corrected (step S9), and the process returns to step S1 to repeat the confirmation of the copying area as described above. If the tracing area confirmed as above is “OK”,
Return to the first command of this copying program (step S10), turn on the copying operation execution signal SS (step S11), and execute the copying operation (step S10).
S12) The copying operation in which the copying area has been confirmed by the copying area confirmation method according to the present invention is ended.

(Effects of the Invention) As described above, according to the copying area confirmation method of the present invention, the copying area commanded by the copying program is graphically displayed on the CRT screen prior to the actual copying operation in the copying device. By doing so, it can be confirmed easily and reliably and in a short time, and if there is an error, it can be corrected, and the corrected result is also confirmed as described above, so especially when multiple copying processes are required for one workpiece. By preventing such machining errors during copying operation, the time and cost required for copying processing can be shortened and reduced.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an apparatus for implementing the scanning area confirmation method of the present invention, FIG. 2 is a flowchart explaining the operation of the scanning area confirmation method of the present invention, and FIG. 3 is a block diagram of an embodiment of the scanning area confirmation method of the present invention. Figure 4 shows an example of a copying program, Figures 5, 6 A to C, and 7 A to C are diagrams showing the copying area displayed on the CRT screen using the copying area confirmation method of FIG. 3 is a diagram for explaining a tracing area confirmation method of the invention. DESCRIPTION OF SYMBOLS 1... Copying program storage section, 2... Copying program analysis/command section, 3... Copying mode command analysis section, 5... Graphic display control section, 40... Copying mode storage section, 41... Copying parameter storage section , 42... Copying limit storage section, 50...
CRT display device.

Claims (1)

[Claims] 1. Before the copying device performs copying operation according to the copying program input to the copying control device, display on the CRT screen a copying area corresponding to the copying command commanded in the copying program,
A scanning area confirmation method characterized by enabling confirmation.