Rotary Table. Calculation Of The Dimensions Using A Probe - Fagor CNC 8060 Installation Manual

17.3
17.
CNC 8060
CNC 8065
(R : 1709)
EF
·690·

Rotary table. Calculation of the dimensions using a probe.

This example calculates the dimensions of an AB rotary table with a moving range for the
A axis between -90º and 90º and for the B axis between 0º and -90º, parameter TYPE = 9.
The next example uses a probe and a cylinder of known diameter secured to the table.
L
R
The CNC can have configured two probes. Before any probing move, the CNC must know
which is the active probe, or, which is the same, which of the two probes it must attend to.
It is selected via part-program or MDI using the instruction #SELECT PROBE.
If a probing move is executed without activating the probe, it will not send any signal to the CNC when
it makes contact. This can cause the probe to break because the probing move will not be stopped.
Dimensions to calculate on an AB rotary table (TYPE=9).
In this type of kinematics the following dimensions must be defined. All the parameters may
be set with a positive or negative value. The (+) sign in the illustrations indicates that the
direction is assumed as positive.
TDATA2 It indicates the position of the secondary rotary axis or the intersection with
the primary axis along the X axis.
TDATA3 It indicates the position of the secondary rotary axis or the intersection with
the primary axis along the Y axis.
TDATA4 It indicates the position of the secondary rotary axis or the intersection with
the primary axis along the Z axis.
TDATA5 It indicates the distance between the secondary and the main rotary
tables.
TYPE=9
B
Y
The machine parameters associated with the probe movement
must be set and the probe must be properly calibrated. You need
to know the length and radius of the probe to calculate the
dimensions of the spindle.
A
TDATA 5(+)
TDATA 2(+)
Z
Z
X
X
I n s ta ll a t io n ma n u a l.
TDATA 4(+)
TDATA 3(+)
Z
Y