
B-63943EN-1/02 6.INTERPOLATION FUNCTION
- 659 -
- Example of polygonal turning with two spindles
This example of polygonal turning with two spindles produces a
square using single-edged cutting tools (for roughing and finishing).
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Mxy;
Txxyy;
G00 X100. Z20. M03 S1000 ;
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G51.2 P1 Q2 R0 ;
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G01 X80. F10. ;
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G04 P4000 ;
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G00 X100. ;
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G51.2 R180.;
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[Repeat steps 4, 5, and 6.]
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G50.2 ;
Myz;
Tyyzz;
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S2000;
G51.2 P1 Q2 R0 ;
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[Repeat steps 4, 5, and 6.]
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[Repeat step 7.]
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[Repeat steps 4, 5, and 6.]
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G50.2 ;
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M05S0;
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Mount a roughing tool on the polygon
synchronization axis (tool rotation axis).
Start rotating the workpiece (with the master axis at
1000 (min
-1
))
Start rotating the tool.
In the PMC ladder, the polygon synchronization axis
is energized by polygon synchronization under way
signal PSYN<F0063#7>.
After acceleration to 12000 (min
-1
) is performed as
the polygon synchronization axis, positioning is
performed. The phase is 0.
In the PMC ladder, the spindle speed arrival signal
SAR<G0029#4> is controlled based on the polygon
spindle speed arrival signal PSAR<F0063#2>
during the polygon synchronization mode.
Starts cutting along the X-axis after
SAR<G0029#4> becomes logical 1 in signal control
at step 3.
Polygonal turning (roughing 1)
Retract the tool along the X-axis.
Change the phase by 180 degrees.
Polygonal turning (roughing 2)
Release the polygon synchronization mode.
Change to a finishing tool.
Change the spindle speed for finishing
Start rotating the tool. (master axis at 2000 min
-1
and polygon synchronization axis at 4000 min
-1
with
a phase difference of 0).
Polygonal turning (finishing 1)
Change the phase by 180 degrees.
Polygonal turning (finishing 2)
Release the polygon synchronization mode.
The polygon synchronization axis (tool rotation axis)
stops.
The master axis rotates at 2000 (min
-1
).
The master axis stops.
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
Step 6.
Step 7.
Step 8.
Step 9.
Step 10.
Step 11.
Step 12.
Step 13.
Step 14.
Step 15.