
30
88
A-78710E
Edit
Apprv. Desig.
Sheet
Title
Draw
No.
Date
Design
Descri
tion
Date
FANUC Series 16i –MB, 18i –MB5
Tool Radius Compensation For 5-Axis
machining Specifications
Dec.01.2001
02 Mar.22.2002
T.Mochia All revision
H.Kouzai
Sheet
T.Mochida H.Kouzai
03 Mar.28.2003
MTanaka All revision H.kouzai
04 Aug.05.2003
T.Horie Intersection offset, G-code unification add. H.kouzai
05 Jun.02.2004 Intersection offset(tool rotation type, Mixed type)
(2) Calculate the cutter compensation vector VD from the tool tip positions
(cutting points) PT, QT, and RT and the tool gradient VT.
(3) Add cutter vector VD to programmed point (pivot point) Q and set the result
as the end point position.
Fig.2.39 Calculation method
NOTE
1 This function is not effective for leading edge offset.
2 With a command for a rotary axis only, this function does not calculate
a cutter compensation vector.
3 This function cannot be used in three-dimensional coordinate
conversion mode.
4 In addition to the cautions given here, the cautions on the Cutter
Compensation in Tool Rotation Type Machine apply to this function.
Z
P’
R’
Q’
VD
VD’
e2
e3
e3
e2
V
T
Coordinate system on the
compensation plane
Tool tip position
LC
Tool radius
e1
Cutter compensation vector (VD') is calculated on a compensation plane
perpendicular to the tool axis direction.
The cutter compensation vector (VD') on the compensation plane is converted
to the original Cartesian coordinate system, and the resulting vector is
regarded as the cutter compensation vector (VD).
X