Linear Tapping Pattern, Face Unit - HEIDENHAIN CNC PILOT 640 User Manual

smart.Turn units | Units – Drilling in C axis

Linear tapping pattern, face unit

The unit machines a linear tapping pattern in which the individual
features are arranged at a regular spacing on the face.
Unit name: G73_Lin_Stirn_C / cycle: G73
Further information: "Tapping G73", Page 376
Pattern form:
Q: Number of holes
X1, C1: Polar starting point – starting point of the pattern
XK, YK: Cartesian starting pnt
I, J: End point (XK) and (YK) – end point of the pattern
(Cartesian)
Ii, Ji: Distance (XKi) and (YKi) – incremental pattern spacing
R: Distance to first/last hole
Ri: Length – Incremental distance
A: Pattern ang. (reference: XK axis)
Cycle form:
Z1: Start point drill
Z2: End point drill
F1: Thread pitch
B: Run-in lgth, to achieve the programmed speed and feed rate
(default: 2 * Thread pitch F1)
L: Retract length with use of floating tap holders (default: 0)
SR: Return speed (default: tapping speed)
SP: Chip breaking depth
SI: Retraction distance
RB: Return plane (default: back to start position)
Further forms:
"smart.Turn unit", Page 78
Further information:
Use the Retract length for floating tap holders. The cycle
calculates a new nominal pitch on the basis of the thread depth,
the programmed pitch, and the retraction length. The nominal pitch
is somewhat smaller than the pitch of the tap. During tapping, the
tap is pulled away from the chuck by the retraction length. With this
method you can achieve higher service life from the taps.
Access to the technology database:
Machining operation: Tapping
Affected parameter: S
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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