
22
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)
Description
・Operation at startup and cancellation
The operation performed at leading edge offset startup and cancellation does not
vary. When G41.3 is specified, the tool is moved by the amount of compensation
(Vc) in the plane formed by the movement vector (V
M
) of the block after the G41.3
block and the tool vector (V
T
) obtained at the time of G41.3 specification. The tool
movement is perpendicular to the tool vector. When G40 is specified, the tool is
moved to cancel V
C
. The following illustrates how the compensation is performed:
(1) When the tool vector is inclined in the tool movement direction
Tool
Tool compensation vector (V
T
)
V
M
G41.3(V
C
)
G40
: Tool center path
: Programmed path
Fig.2.24 When the tool vector is inclined in the tool movement direction
(2) When the tool vector is inclined in the direction opposite to the tool movement
direction
: Tool center path
: Programmed path
Tool
Tool compensation vector (V
T
)
V
M
G41.3(V
C
)
G40
Fig.2.25 When the tool vector is inclined in the direction opposite to the tool
movement direction