
PROGRAMMING
B–64154EN/01
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
165
. . . . . . . . .
V04 ;
If macro numbers 01, 02, 03 and 04 are called sequentially by the
multi-piece machining command in this case, machining proceeds as
follows.
1) Tool T31 performs full machining on all product parts.
2) Then, T22 performs full machining on all product parts.
3) Then, T33 performs full machining on all product parts.
4) Then, T11 performs full machining on all product parts.
Thus, its tool change is completed by only four steps so that tool change
time is considerably decreased compared with method 1.
CAUTION
1 The G98 coordinate system is canceled by the G92
command.
2 If the parameter CLR (No. 3402#6) is set, the G98 coordinate
system is canceled by a reset.
3 When the UV macro contains the G91 command, the tool
moves according to the incremental value from the current
position rather than the incremental position based on the
G98 coordinate system.
Specify any of the following commands, and then multi-piece machining
is performed by calling machining commands stored using the macro
function.
G73 W
ωn Q q ; or
G74 W
ωn Q q ;
where
ωn: A macro number
q: Machining start area specification
q=1 Machining starts from the lower left area ( in Fig. 14.5.1 (a))
q=2 Machining starts from the lower right area ( in Fig. 14.5.1 (a))
q=3 Machining starts from the upper left area ( in Fig. 14.5.1 (a))
q=4 Machining starts from the upper right area ( in Fig. 14.5.1 (a))
G73 goes on punching in the X axial direction, whereas G74 goes on
punching in the Y axial direction in grid parts-line.
In the example shown in Figure 14.5.1 (b) to start machining from area
and to punch in the X axial direction, specify the following commands
for the respective methods:
Method 1: G73 W01 Q1;
Method 2: G73 W01 Q1;
G73 W02 Q1;
G73 W03 Q1;
G73 W04 Q1;
14.5.2
Multi–Piece Machining
Commands (G73, G74)