
16.MEASUREMENT B-63943EN-1/02
- 1876 -
- Basic procedure to set tool offset value
To use the tool setter function for a one–turret/two–spindle lathe, first
specify the spindle to be measured, using the S2TLS (G040.5)
(spindle measurement select) signal.
(1) Execute manual reference position return.
By executing manual reference position return, a machine
coordinate system is established.
The tool offset value is computed on the machine coordinate
system.
(2) Select manual handle mode or manual continuous feed mode and
set the tool compensation value write mode select signal
GOQSM to “1”. The CRT display is automatically changed to
the tool offset screen (geometry), and the “OFST” indicator starts
blinking in the status indication area at the bottom of the screen,
which indicates that the tool compensation value writing mode is
ready. When the tool setter function for a one–turret/two–spindle
lathe is in use, the S1MES or S2MES (spindle under
measurement) signal, whichever is applicable, becomes 1.
NOTE
After this, it is impossible to switch the S2TLS
(spindle measurement selection) signal until the
GOQSM (offset write mode) signal becomes 0.
(3) Select a tool to be measured.
(4) When the cursor does not coincide with the tool offset number
desired to be set, move the cursor to the desired offset number
using the page key and cursor key.
The cursor can also be coincided with the tool offset number
desired to be set automatically by the tool offset number input
signals (when parameter QNI(No.5005#5)=1).
In this case, the position of the cursor cannot be changed on the
tool compensation screen using page keys or cursor keys.
(5) Near the tool to the sensor by manual operation.
(6) Place the tool edge to a contacting surface of the sensor by manual
handle feed.
Bring the tool edge in contact with the sensor. This causes the
tool compensation value writing signals to input to be CNC.
The tool compensation value writing signal is set to “1”, and the :
The following tool compensation amount write signals are set up
according to the setting of the TS1 parameter (bit 3 of No. 5004).
When the parameter is 0: +MIT1, –MIT1, +MIT2, –MIT2
When the parameter is 1: +MIT1 only
i) The axis is interlocked in this direction and its feed is
stopped.
ii) The tool offset value extracted by the tool offset memory
(tool geometry offset value) which corresponds to the offset
number shown by the cursor is set up.
(7) For both X-axis and Z-axis, their offset values are set by
operations (5) and (6).
(8) Repeat operations (3) to (7) for all necessary tools.