
B–63833EN–1/02
2. PREPARATIONS FOR OPERATION
119
L
L1
W1
X
CX
Z
A
CZ
L
A
W1
X
CX
CZ
Z
W
W
L1
Zero point of
the workpiece
coordinate
system
Chuck which holds a workpiece on
the outer surface (TY=1)
Chuck which holds a workpiece on
the inner surface (TY=0)
Zero point of
the workpiece
coordinate
system
Fig. 2.3.4 (a)
Symbol
Description
TY Profile of a chuck (0: Chuck which holds a workpiece on the inner
surface, 1: Chuck which holds a workpiece on the outer surface)
CX X coordinate of a chuck
CZ Z coordinate of a chuck
L Dimensions of the claw of a chuck
W Dimensions of the claw of a chuck (radius input)
L1 Dimensions of the part of a claw at which a workpiece is held
W1 Dimensions of the part of a claw at which a workpiece is held
(radius input)
TY: Specifies the profile of a chuck. When TY is set to 0, the chuck holding a
workpiece on the inner surface is specified. When TY is set to 1, the chuck
holding a workpiece on the outer surface is specified. The profile of the
chuck is assumed to be symmetrical with respect to the z–axis.
CX, and CZ: Specify the position (point A) of a chuck with the coordinates of the
workpiece coordinate system. In this case, do not use the coordinates of
the machine coordinate system.
WARNING
Specifying the coordinates with a diameter or radius
depends on whether the corresponding axis conforms to
diameter or radius specification . When the axis conforms
to diameter specification, the coordinates are specified with
a diameter.
L, L1, W, and W1: Define the profile of a chuck.
WARNING
Always specify W and W1 with radii. L and L1 are also
specified with radii whenever the Z–axis conforms to a
radius specification.