
45
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)
6. Conversion from P2 to P2' used to calculate cutter compensation
(1) P2 on the workpiece coordinate system which is commanded by N2 block is
converted to P2_t on the table coordinate system.
So, SV is the vector given as follows:
)
21)0()0(
11
CVCVWVaROTMbROTSSV −−∗∗−=
−−
(2) P2 on the workpiece coordinate system which is commanded by N2 block is
converted to P2' on the workpiece coordinate system in the state of the N2 block.
)
}
WVCVCVCVtPbROTSaROTMP −+
= 122_2)2()2('2
7. Conversion from P3 to P3' used to calculate cutter compensation
(1) P3 on the workpiece coordinate system which is commanded by N3 block is
converted to P3_t on the table coordinate system.
So, the SV is the vector given as follows:
)
21)0()0(
11
CVCVWVaROTMbROTSSV −−∗∗−=
−−
(2) P3 on the workpiece coordinate system which is commanded by N2 block is
converted to P3' on the workpiece coordinate system in the state of the N2 block.
)
}
WVCVCVCVtPbROTSaROTMP −+
= 122_3)2()2('3
8. Calculation of the cutter compensation vector using three points P1', P2', P3'
The calculation is similar to the calculation of cutter compensation C.
4)