
B–63002EN/01
22. FUNCTIONS SPECIFIC TO 2–PATH
CONTROL
NC FUNCTION
257
When one workpiece is machined by two paths operating simultaneously,
paths may come close to each other. If these paths touch each other
because of a program error or setting error, the tool or even the machine
may be damaged.
If such an accident is expected, the path interference check function
decelerates and stops the paths.
path 1
path 2
To execute the path interference check, the contour of each path (contour
including the tool mounted on the path) must be set as a contact-inhibited
area for each tool beforehand.
This function checks if the contact-inhibited areas of these paths overlap.
If they overlap each other, it determines that the paths have interfered with
each other, and decelerates them till they stop as an alarm.
To machine a fine workpiece, two cutting tools should be applied on both
sides of a workpiece as shown below. When only one tool is applied, the
other side of the workpiece may be deflected. Using two cutting tools can
make machining precision higher. If, however, these tools are not moved
synchronously, the workpiece will shake and machining will not be done
precisely. The balance cut function makes paths move synchronously.
NOTE
The balance cut function cannot be used if the option of
mirror-image operation of facing paths is specified.
22.2
PATH
INTERFERENCE
CHECK (T series)
T series
22.3
BALANCE CUT
(G68, G69) (T series)
T series