
PROGRAMMING
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
B–64154EN/01
166
Let the number of tool required to machine products for one sheet be n,
and method 2 requires n times of commands G73/G74 to be specified.
In such a case, several macro numbers can be represented by a single
macro number if machining start area (specified by Q) and machining
direction (G73/G74) are both the same with respect to the corresponding
tools. Macro numbers to be provided for this purpose are 90 to 99. (These
are called multiple macro storage numbers hereafter.)
To store macro numbers 01, 02 and 04 as a single macro number 90 in the
example shown in Fig. 14.5.1 (b), specify as follows.
U90 ;
U01 ;
T31 ;. . . .
. . . . . . . . .
V01 ;
U02 ;
T22 ;. . . .
. . . . . . . . .
V02 ;
U04 ;
T11 ;. . . .
. . . . . . . . .
V04 ;
V90 ;
In this case, the command of “G73 W90 Q1” becomes identical with the
following series of commands.
G73 W01 Q1 ;
G73 W02 Q1 ;
G73 W04 Q1 ;
Though multi-piece machining commands (G73/G74) are generally used
to punch products of the same shape arranged at intervals of grid, they can
be also performed to punch exclusively in the X or Y axial direction.
In such a case, specify the number of products in the X or Y axial direction
(to be specified by address word P or K) in G98 to “0”.
When products are machined using a NC tape for multi-piece machining,
any desired machining method can be selected according to a set-up from
MDI.
Input a setting value into the setting data number 16206 in MDI mode
according to the desired machining method.
Setting value for No. 16206
0: The NC tape for multi-piece machining is not used
1: Trial punching for multi-piece machining
2: Machining on the reset of material punched for trial
14.5.3
Setting of Machining
Method for Multi–Piece
Machining