
A-79348E
Title
Draw
No.
33/88
page
FANUC Series 30i-MODEL A
Tool center point control
for 5-axis machining
Ed. Date Design Description
Date Jan.16.’04 Design. Apprv.
- Angle of the rotary axis for type 2 (when the movement range is specified)
If the upper and lower limits of the movement range of the rotary axis is
specified using parameters No.19741 to No.19744, the rotary axis will move
only within the specified range when the direction is specified using I, J, K,
Q command for type 2 control.
Although the procedure for determining the angles is the same as that used
"when the movement range is not specified," the "output angles" need to be
selected from
those computed angles that are within the specified
movement range for both axes.
"Output judgment conditions"
Tool rotation type or table rotation type machine
<1> Of the angle pairs whose master and slave axis angles are both
within the specified movement range, the rotary axis angle pair whose
master axis (first rotary axis) moving angle is smaller represents the
"output angles."
↓
↓ When the master axis moving angle is the same
↓
<2> The "output angles" are represented by the computed rotary axis
angle pair whose slave axis (second rotary axis) moving angle is
smaller.
↓
↓ When the slave axis moving angle is the same
↓
<3> The "output angles" are represented by the computed rotary axis
angle pair whose master axis (first rotary axis) angle is nearer to 0
degree (multiple of 360 degrees).
↓
↓ When the master axis angle is equally near to 0 degree
↓
<4> The "output angles" are represented by the computed rotary axis
angle pair whose slave axis (second rotary axis) angle is nearer to 0
degree (multiple of 360 degrees).
Mixed type machine
<1> Of the angle pairs whose master and slave axis angles are both
within the specified movement range, the rotary axis angle pair whose
table (second rotary axis) moving angle is smaller represents the
"output angles."
↓
↓ When the table moving angle is the same
↓
<2> The "output angles" are represented by the computed rotary axis
angle pair whose tool (first rotary axis) moving angle is smaller.
↓
↓ When the tool moving angle is the same
↓
<3> The "output angles" are represented by the computed rotary axis
angle pair whose table (second rotary axis) angle is nearer to 0
degree (multiple of 360 degrees).
↓
↓ When the table axis angle is equally near to 0 degree
↓
<4> The "output angles" are represented by the computed rotary axis
angle pair whose tool (first rotary axis) angle is nearer to 0 degree
(multiple of 360 degrees).