
When a coordinate system fixed on the table is used as the programming coordinate
system, programming can be performed without worrying about the rotation of the
table because the programming coordinate system does not move with respect to the
table, although the position and direction of the workpiece fixed on the table change
due to its rotation. When a straight line is specified, the tool center point moves
along a straight path with respect to the workpiece as instructed. (See Fig.1 (b).)
By setting the relevant parameter, the workpiece coordinate system can also be
employed as the programming coordinate system. In this case, as the table turns,
the position and direction of the workpiece fixed on the table change with respect to
the programming coordinate system. It is therefore necessary to take into account
the rotation of the table when specifying the end point. In this case, too, when a
straight line is specified, the tool center point moves along a straight path with respect
to the workpiece as instructed.
Fig.1 (c) illustrates how linear interpolation is accomplished with a mixed type
machine, showing the relationship between the case when a table-fixed coordinate
system is used as the programming coordinate system and the case when the
workpiece coordinate system is used.
If linear interpolation is specified in this function mode, speed control is exerted in
such a way that the tool center point moves at a specified speed with respect to the
workpiece.
B-63534EN/02-05
Edit
Apprv. Desig.
Sheet
Title
Draw
No.
Date
Design
Description
Date
FANUC Series 16i/160i/160is-MB,18i/180i/180is-MB5,
18i/180i/180is-MB OPERATOR’S MANUAL
Concerning the addition of TOOL CENTER POINT
CONTROL FOR 5-AXIS MACHINING
Oct.27.2003
T. Horie
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