Solid Tap Function; Conditions For The Addition Of Solid Tap Function; Description Of Programming - YASKAWA yasnac i80m Instruction Manual

2.13.1.2 Solid
tap
function
•*-
This function enables
tapping
to
be completely synchronized between
spindle rotation and Z-axisfeed. It eliminates the need for
a floating chuck,
and thus enables high-speed, high-accuracy tapping.
Conventional
tapping can also be commanded by the
program.
(1) Conditions for the addition of solid
tap
function
The solid
tap
function
can
only be added under the following
conditions:
(a)
S5-digit analog
output
option is installed.
(b) The spindle
drive is performed
by the VS-626MT III
or VS-626VM3
made by Yaskawa.
(c)
The spindle or spindle
motor
is equipped with PG, and the
gear
ratio
used for solid
tap
is fixed
(for
equipment where
the spindle and
motor
are directly coupled, the best
performance can be obtained).
I
(2) Description of
programming
(a)
G code for commanding the solid mode
In order for tapping
using the solid
tap
function and tapping of the
conventional
type to
be discriminated, the following G codes
must
be commanded.
•
G93— Solid
tap mode command (ON)
Solid
tap
is executed
in the subsequent
tap
cycles (GS4/G74
commands)
(per-rotation
feed command is
used).
No machining
other than solid
tap
can be executed in this mode.
•
G94
—
Solid
tap
mode cancel command (OFF)
The solid
tap
mode is canceled, and the conventional mode is
entered.
Conventional
tap
is executed in the subsequent
tap
cycles
(per-minute
feed
command is
used).
VISII3
G93/G94
are
G codes
in group 05,
and
are
modal. When the
power is
turned ON
or
the
equipment is
reset,
G94 is
set
by
default.
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193
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