Pcd Function - Easson ES-12 Operation Manuals

Function : ES-12 provides the PCD function for tool positioning for the drilling of the pitch holes along a
Circle, operator simply enter the machining parameters as per the step by step guide that
shown on the DRO's message display, then the DRO will calculate all the pitch holes position
coordinate, and temporarily preset those holes' position to zero ( 0.000, 0.000 ).
Operator simply move the machine until the X,Y axes display = 0.000, 0.000,
then the Pitch Holes' position are reached.
Machining parameters :
- Centre ( CENTRE )
- Diameter ( DIA )
- No. of holes ( NO. HOLE )
- Start angle ( ST. ANG )
- End angle ( End ANG )
after the above machining parameters are entered into the
DRO, the PCD function will temporarily preset all Pitch Holes'
position = ( 0.000, 0.000 )
operator can press
Machining parameters :
- Centre ( CENTRE ) ......................... X=0.000, Y=0.000
- Diameter ( DIA ) ............................. 80.000 mm
- No. of holes ( NO. HOLE ) .............. 5 holes
- Start angle ( ST. ANG ) ................... 30 degree ( clockwise )
- End angle ( End ANG ) ................... 300 degree ( clockwise )
Step 1 : Setup the work piece datum ( work piece zero ), press
set up the work piece datum
PCD - tool positioning for Pitch Circle Diameter
or keys to select the Pitch Holes,
and move the machine to
display = ( 0.000, 0.000 ), then
the Pitch Holes' position along a
circle is reached.
Example
-78.560
X
mm
12.345
Y
mm
45.675
Z
mm
ABS
CENTRE
( X =0.000
Y =0.000 )
DIA
( 80.000 mm )
to enter into the PCD function
enter the CENTRE coordinate
enter into

PCD function

- 34 -
X(+)
Angular direction
positive( + ) - clockwise
negative( ) - counter
Y(+)
ST. ANG
( 30 degree )
ENd ANG
( 300 degree )
PCD
X 0.000
X
Y 0.000
Y
Z
CENTER
ABS CENTER
clockwise