
B–63523EN–1/03
9. SPINDLE SPEED FUNCTION
1127
The descriptions given in this section (such as spindle gear switching and
M–type/T–type) are based on the explanation given in Section 9.3. Refer
to Section 9.3 as necessary.
The differences in the specifications for rigid tapping for the M series and
T series are described below.
The tapping cycle G84 and the reverse tapping cycle G74 can be used to
specify M series rigid tapping.
A tapping axis can be arbitrarily selected from the basic axes X, Y, Z, as
well as axes parallel to the basic axes, by setting the corresponding
parameters accordingly (bit 0 (FXY) of parameter No. 5101).
The spindle operations of G84 and G74 are reversed with respect to each
other.
If multi–spindle control is added as well as rigid tapping by the first
spindle (analog or serial), rigid tapping by selecting the second or third
spindle (serial) is also enabled.
The face tapping cycle G84 and the side tapping cycle G88 can be used
to specify T series rigid tapping.
Depending on the rigid tapping command, rigid tapping can be performed
along the Z–axis (when G84 is used) or the X–axis (when G88 is used).
A reverse tapping cycle, like that supported by M series, is not available.
If multi–spindle control is added as well as rigid tapping by the first
spindle (analog or serial), rigid tapping by selecting the second or third
spindle (serial) is also enabled.
For a two–path lathe, rigid tapping can be performed using a combination
of the spindle and tapping axis selected in each path.
Rigid tapping using a mixture of paths is not allowed. For example, rigid
tapping in combination of a tapping axis of tool post 1 and the spindle of
tool post 2, by issuing a tapping command to tool post 1, is not supported.
Specification of
M series/T series
D Rigid tapping of M series
D Rigid tapping of T series