
A-79348E
Title
Draw
No.
25/88
page
FANUC Series 30i-MODEL A
Tool center point control
for 5-axis machining
Ed. Date Design Description
Date Jan.16.’04 Design. Apprv.
When the G18 (Z-X plane) command is executed
The G43.4 command is executed after moving the A- and C-axes, and
circular interpolation is performed using the G18 (Z-X plane) command
without moving any rotary axis. → This case corresponds to <2> and
allows circular interpolation.
Example)
:
G01 A90. C10. ;
G43.4 H1 ;
G18 G02
IP IR;
:
After the G43.4 command, circular interpolation is performed using the G18
command (Z-X plane) by moving any of the rotary axes. → Alarm
(violation of <2>)
Example)
:
G43.4 H1 ;
G01 A10. (C10.)
G18 G02
IP IR;
:
- Tool center point control command
During tool center point control, the command specifies the location of each
block end point as seen from the programming coordinate system.
The program specifies the tool center point.
As for the rotary axis, the command specifies the coordinate values of each
block end point in the case of type 1 or the tool direction at each block end
point in the case of type 2.
The feedrate is specified by the tangential speed relative to the workpiece
(the tool's relative speed as opposed to the workpiece), which is represented
by F.
- Move commands that can be specified during tool center point control
The move commands that can be specified during tool center point control
are linear interpolation (G01), positioning (G00), circular interpolation (G02,
G03), and helical interpolation (G02, G03).
When linear interpolation (G01) is specified during tool center point control,
speed control is exerted so that the tool center point moves at the specified
speed.
The circular interpolation command (G02, G03) controls the tangential
speed of the arc path along which the tool center point moves.
The helical interpolation command (G02, G03) controls the tangential speed
of the arc path along which the tool center point moves or a synthetic speed
including that of the helical axis. (This is dependent on the setting of
parameter HTG (No.1403#5).)
As the actual speed, the speed at the control point is shown.