Improvement for Rotary Axis Control Additional Manual Page 4
Additional Manual
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FANUC Series16i /18i /21i-MA
Improvement for Rotary Axis Control
A-77975
1999.10.16
2000.1.17 (2) is added.02
< Example 1 >
When instructing as follows on IS-B unit,
G91 G01 C10. F10. ;
(1) The calculation is as follows, when 10000(10mm) is set in a virtual radius
(parameter No.1465).
()
(sec)(min)
min)/(
)(
min)(deg/
)(
(deg)
min/
)(
2
(deg))(
2
4719755.1017453292.0
10
7453292.1
2957795.57
7453292.1
10
10
7453292.1
180
1010
180
⋅⋅⋅=⋅⋅⋅=
⋅⋅⋅
=
′
=
′
⋅⋅⋅=
⋅⋅⋅
×=
⋅⋅⋅=
××
=
∆××
=
′
mm
mm
mm
mmC
mm
mm
C
F
L
T
F
Bl
L
π
π
Therefore, the movement time becomes about 10.47 (sec), and the rotation
speed becomes about 57.30 (deg/min). The speed on 10mm in virtual radius
becomes 10mm/min at instruction speed in Figure 1.
(2) The calculation is as follows, when 36000(36mm) is set in a virtual radius
(parameter No.1465).
()
(sec)(min)
min)/(
)(
min)(deg/
)(
(deg)
min/
)(
2
(deg))(
2
6991118.37628318530.0
10
28318530.6
9154943.15
28318530.6
10
10
28318530.6
180
1036
180
⋅⋅⋅=⋅⋅⋅=
⋅⋅⋅
=
′
=
′
⋅⋅⋅=
⋅⋅⋅
×=
⋅⋅⋅=
××
=
∆××
=
′
mm
mm
mm
mmC
mm
mm
C
F
L
T
F
Bl
L
π
π
Therefore, the movement time becomes about 37.70 (sec), and the rotation
speed becomes about 15.92 (deg/min). The speed on 36mm in virtual radius
becomes 10mm/min at instruction speed in Figure 1.
Contents Summary of Improvement for Rotary Axis Control Additional Manual
- Page 1FANUC Series 16i /18i /21i –MA Specification Improvement for Rotary Axis Control Index 1. Outline 2 2. Specification 2 2.1 Cutting feed speed 3 2.2 For 0mm in virtual radius 3 3. Parameter 6 4. Note 7 Title FANUC Series16i /18i /21i-MA Improvement for Rotary Axis Control Draw No. A-77975 02 2000.1.1
- Page 21. Outline The rotation speed of the rotation axis is assumed to be a movement speed on a virtual radius. 2. Specification In linear interpolation with a linear axis and the rotary axis, the movement angle 1 degree of the rotary axis is interpolated as moved distance 1 mm (1inch at inch input) (Refe
- Page 32.1 Cutting feed speed In this function, the speed of the axis becomes L / L ′ times for the feedrate displayed on the CNC screen from the difference of the method of obtaining moved distance. Especially, the movement of the axis quickens when a small value is set to a virtual radius. Therefore, ple
- Page 4< Example 1 > When instructing as follows on IS-B unit, G91 G01 C10. F10. ; (1) The calculation is as follows, when 10000(10mm) is set in a virtual radius (parameter No.1465). π × 10 ( mm ) × 10 (deg) 2 π × l C × ∆B 2 L′ = = = 1.7453292 ⋅ ⋅ ⋅( mm ) 180 180 10 (deg) FC = 10
- Page 5Rotation speed when 10mm setting. (1) Instruction speed. F=10mm/min Rotation speed when 36mm setting. (2) 10mm 36mm Figure 1 < Example 2 > On the machine which the direction of the tool changes by the rotation axis like figure, the movement speed of a standard point can be assumed to be instruction
- Page 63. Parameter 1408 RFDx [ Data type ] Bit axis RFDx In a linear interpolation, the rotation speed of the rotary axis is assumed to be a movement speed in a virtual radius. 0 : Disable 1 : Enable 1465 Virtual radius of sending speed control of rotary axis [ Data type ] 2 - word axis [ Unit of data ] I
- Page 74. Note (1) When parameter ROTx (No.1006#0) and RFDx (No.1408#0) are 1, this function becomes effective. (2) Parameter RFDx (No.1408#0) and a virtual radius parameter (No.1465) can be rewrote by G10. (3) The rotary axis moves at the maximum cutting feedrate when only rotary axis is commanded in case