2.9.12 Tapping with compensating chuck
2.9.12.1 Tapping with compensating check and retraction motion (G63)
For tapping with compensating chuck, using the G63 command, the following traversing motion
is executed:
● G63: Tapping in the tapping direction up to the end of thread point
● G63: Retraction motion with programmed spindle direction of rotation reversal
Note
After a G63block, the last effective interpolation type G0, G1, G2 is active.
Syntax
G63 <axis> <direction of rotation> <speed <feedrate>
Meaning
G63: Tapping with compensating chuck
Effective: Non-modal
<Axis>: Traversing distance/position of the geometry axis (X, Y or Z) at the end of the
thread, e.g. Z50
<Direction of
rotation>:
Direction of spindle rotation:
● M3: Clockwise rotation, right-hand thread
● M4: Counterclockwise rotation, left-hand thread
<Speed>: Maximum permissible spindle speed while tapping, e.g. S100
<Feedrate>: Feedrate of the tapping axis F, with F = spindle speed * thread pitch
Example
Tapping an M5 thread:
● Spindle pitch according to the standard: 0.8 mm/rev
● Spindle speed S: 200 rpm
● Feedrate F = 200 rpm * 0.8 mm/rev = 160 mm/min.
Program code Comment
N10 G1 X0 Y0 Z2 F1000 S200 M3 ; Approach starting point
; Spindle clockwise direction of rotation, 200
rpm
N20 G63 Z-50 F160 ; Tapping with compensating chuck
; Drilling depth: absolute Z=50mm
; Feedrate: 160 mm/min
Fundamentals
2.9 Motion commands
NC programming
244 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
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