
31
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)
2.4 Specification of parameters
・Relationships between rotary axes and rotary planes [19610 to 19619]
These parameters set the relationships between rotary axes and rotary planes. In
general, the direction vector of a rotary axis has components in three directions.
This function, however, can perform calculation on a rotary axis having a vector of
components in any two directions.
(1) For a component in a single direction ... type 1
(The rotary axis rotates about any of the three basic axes.)
Example:
Axis number of the rotary axis = 5 (C-axis)
Axis number of linear axis 1 = 1 (X-axis)
Axis number of linear axis 2 = 2 (Y-axis)
1) The rotary axis:
- Rotates about the axis orthogonal to the plane formed by linear axes 1 and 2
- Assumes that the rotation from the forward direction of linear axis 1 to the
forward direction of linear axis 2 is the forward rotation of the rotary axis.
(2) For components in two directions ... type 2
(The rotary axis rotates about an axis on the plane formed by any two of the three
basic axes.)
Example:
Axis number of the rotary axis = 4 (B-axis)
Axis number of linear axis 1 = 1 (X-axis)
Axis number of linear axis 2 = 2 (Y-axis)
Axis number of linear axis 3 = 3 (Z-axis)
Angle =α
1) The linear axes 1, 2, and 3 are assumed to form a right-handed system in that
order.
2) The angle:
- Rotates on the plane formed by linear axes 3 and 1.
- Assumes that the rotation from the forward direction of linear axis 3 to the
forward direction of linear axis 1 is the forward rotation of the angle
- Assumed to be 0° when it matches the direction of linear axis 3.
3) When the angle is equal to 0°, the rotary axis:
- Rotates about the axis orthogonal to the plane formed by linear axes 1 and 2.
- Assumes that the rotation from the forward direction of linear axis 1 to the
forward direction of linear axis 2 is the forward rotation of the rotary axis.
4) If 0 is set for linear axis 3, type 1 is assumed.
Y
X
Z
C
α
Y
X
Z
C
B