
10
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)
・Operation during compensation
Operations such as change of the offset direction and offset value, retention of a
vector, and interference checks are performed in the same way as for cutter
compensation. However, G39 (corner rounding) cannot be specified. So, note the
following:
(1) When the tool center path goes outside the programmed path at a corner, a linear
movement takes place at the corner without inserting an arc. When the tool
center path goes inside the programmed path, nothing is inserted.
:Tool center path
:Programmed tool path
Example (1)-1 When going around the
outside of a corner with
an acute angle
linear movement block is inserted
Tool
Tool
Workpiece
Workpiece
:Tool offset value
No block is inserted
Example (1)-2 When going around the
inside of a corner with
an acute angle
Fig.2.6 Operation in the compensation mode (1)-1, 2
In the above examples, the terms "inside" and "outside" denote how the tool
center path is positioned with respect to the programmed path. In the figure
below, example (1)-3 shows the same relationship between the tool center path
and programmed path as example (1)-1 and indicates that the tool center path is
outside the programmed path; example (1)-4 shows the same relationship as
example (1)-2 and indicates that the tool center path is inside the programmed
path.
: Tool center path
: Programmed tool path
Example(1)-3
Example(1)-4
ctual tool
Reference tool
ctual tool
Reference tool
Workpiece
Workpiece
: Tool offcet value
Fig.2.7 Operation in the compensation mode (1)-3, 4