Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 4.INTERPOLATION FUNCIONS
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4.10 CYLINDRICAL INTERPOLATION CUTTING POINT
CONTROL (G07.1)
The conventional cylindrical interpolation function controls the tool
center so that the tool axis always moves along a specified path on the
cylindrical surface, towards the rotation axis (cylindrical axis) of the
workpiece. On the other hand, this function controls the tool so that the
tangents to the tool and a contour figure cutting surface always pass
through the rotation center of a workpiece
Format
As shown below, the same command as that for the
conventional cylindrical interpolation function is
used.
G07.1 IPr ; Sets cylindrical interpolation mode
(enables cylindrical interpolation).
:
:
G07.1 IP0 ; Clears cylindrical interpolation mode.
IP : One rotation axis address
r : Cylinder radius of rotation axis
Specify each of G07.1 IPr; and G07.1 IP0; singly in a block.
Explanation
- Comparison with conventional cylindrical interpolation
As shown in Fig.4.10 (a) , control is exercised along the offset axis
(Y-axis) direction that is perpendicular to the tool, tool center axis, and
workpiece rotation center axis.
Fig.4.10 (a) Comparison with Conventional Interpolation
Workpiece
Rotation Rotation
Tool
Tool center
Y-axis
Y-axis
Conventional cylindrical
interpolation
Cylindrical interpolation based
on this function

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