Tapping With Compensating Chuck; Tapping With Compensating Check And Retraction Motion (G63) - Siemens SINUMERIK 840D sl Programming Manual

Fundamentals
2.9 Motion commands
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:
<Axis>:
<Direction of
rotation>:
<Speed>:
<Feedrate>:
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
N10 G1 X0 Y0 Z2 F1000 S200 M3
N20 G63 Z-50 F160
244
Tapping with compensating chuck
Effective: Non-modal
Traversing distance/position of the geometry axis (X, Y or Z) at the end of the
thread, e.g. Z50
Direction of spindle rotation:
● M3: Clockwise rotation, right-hand thread
● M4: Counterclockwise rotation, left-hand thread
Maximum permissible spindle speed while tapping, e.g. S100
Feedrate of the tapping axis F, with F = spindle speed * thread pitch
Comment
; Approach starting point
; Spindle clockwise direction of rotation, 200
rpm
; Tapping with compensating chuck
; Drilling depth: absolute Z=50mm
; Feedrate: 160 mm/min
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming